% This file contains data collected as part of the Western
% Boundary Time Series ("WBTS") project. The WBTS project is run at
% the NOAA-Atlantic Oceanographic and Meteorological Laboratory.
%  
% Inverted Echo Sounder SN:   155 
% Nominal Geographic Position [ decimal deg ] and Depth [ m ]:  
% Latitude:      26.499 
% Longitude:  -72.004 
% Depth:         5233 
%  
% Data available is round trip acoustic travel time calibrated 
% to 1000 dbars ("tau", in seconds), and bottom pressure 
% anomaly ("pressure", in decibars) 
%  
% Missing data values are noted with "NaN"
%  
% The columns are as follows:
% Year, Month, Day, tau, Pressure 
%  
2006     10      3     1.3075        NaN 
2006     10      4     1.3080     0.0973 
2006     10      5     1.3081     0.0991 
2006     10      6     1.3078     0.0875 
2006     10      7     1.3076     0.0679 
2006     10      8     1.3078     0.0489 
2006     10      9     1.3080     0.0542 
2006     10     10     1.3080     0.0723 
2006     10     11     1.3081     0.0778 
2006     10     12     1.3081     0.0622 
2006     10     13     1.3078     0.0680 
2006     10     14     1.3077     0.0735 
2006     10     15     1.3078     0.0750 
2006     10     16     1.3078     0.0602 
2006     10     17     1.3075     0.0380 
2006     10     18     1.3075     0.0211 
2006     10     19     1.3076     0.0049 
2006     10     20     1.3077     0.0019 
2006     10     21     1.3078     0.0106 
2006     10     22     1.3080     0.0191 
2006     10     23     1.3083     0.0241 
2006     10     24     1.3085     0.0209 
2006     10     25     1.3084     0.0107 
2006     10     26     1.3083     0.0069 
2006     10     27     1.3084     0.0174 
2006     10     28     1.3085     0.0340 
2006     10     29     1.3087     0.0333 
2006     10     30     1.3089     0.0336 
2006     10     31     1.3092     0.0567 
2006     11      1     1.3091     0.0676 
2006     11      2     1.3091     0.0627 
2006     11      3     1.3091     0.0479 
2006     11      4     1.3091     0.0186 
2006     11      5     1.3089     0.0065 
2006     11      6     1.3090     0.0054 
2006     11      7     1.3090    -0.0085 
2006     11      8     1.3093    -0.0125 
2006     11      9     1.3095    -0.0157 
2006     11     10     1.3095    -0.0167 
2006     11     11     1.3095     0.0084 
2006     11     12     1.3096     0.0161 
2006     11     13     1.3096     0.0021 
2006     11     14     1.3097    -0.0246 
2006     11     15     1.3100    -0.0359 
2006     11     16     1.3102    -0.0335 
2006     11     17     1.3103    -0.0445 
2006     11     18     1.3105    -0.0432 
2006     11     19     1.3107    -0.0311 
2006     11     20     1.3109    -0.0182 
2006     11     21     1.3111     0.0003 
2006     11     22     1.3110    -0.0090 
2006     11     23     1.3109    -0.0329 
2006     11     24     1.3109    -0.0255 
2006     11     25     1.3111    -0.0137 
2006     11     26     1.3110    -0.0144 
2006     11     27     1.3109    -0.0177 
2006     11     28     1.3108    -0.0137 
2006     11     29     1.3108    -0.0059 
2006     11     30     1.3107    -0.0023 
2006     12      1     1.3106    -0.0021 
2006     12      2     1.3106     0.0100 
2006     12      3     1.3105     0.0130 
2006     12      4     1.3103     0.0153 
2006     12      5     1.3101     0.0283 
2006     12      6     1.3101     0.0458 
2006     12      7     1.3101     0.0390 
2006     12      8     1.3101     0.0242 
2006     12      9     1.3096     0.0124 
2006     12     10     1.3092     0.0249 
2006     12     11     1.3092     0.0504 
2006     12     12     1.3092     0.0482 
2006     12     13     1.3090     0.0266 
2006     12     14     1.3088     0.0153 
2006     12     15     1.3088     0.0116 
2006     12     16     1.3088     0.0007 
2006     12     17     1.3087    -0.0110 
2006     12     18     1.3087    -0.0225 
2006     12     19     1.3087    -0.0371 
2006     12     20     1.3087    -0.0215 
2006     12     21     1.3087    -0.0032 
2006     12     22     1.3087     0.0178 
2006     12     23     1.3085     0.0328 
2006     12     24     1.3082     0.0269 
2006     12     25     1.3081     0.0106 
2006     12     26     1.3081     0.0013 
2006     12     27     1.3077    -0.0036 
2006     12     28     1.3074    -0.0060 
2006     12     29     1.3072    -0.0179 
2006     12     30     1.3070    -0.0163 
2006     12     31     1.3069    -0.0096 
2007      1      1     1.3071    -0.0194 
2007      1      2     1.3072    -0.0248 
2007      1      3     1.3072    -0.0163 
2007      1      4     1.3073    -0.0081 
2007      1      5     1.3073    -0.0154 
2007      1      6     1.3073    -0.0169 
2007      1      7     1.3073    -0.0163 
2007      1      8     1.3073    -0.0178 
2007      1      9     1.3072    -0.0258 
2007      1     10     1.3071    -0.0320 
2007      1     11     1.3071    -0.0168 
2007      1     12     1.3071    -0.0158 
2007      1     13     1.3072    -0.0273 
2007      1     14     1.3073    -0.0300 
2007      1     15     1.3074    -0.0365 
2007      1     16     1.3074    -0.0412 
2007      1     17     1.3073    -0.0351 
2007      1     18     1.3074    -0.0262 
2007      1     19     1.3074    -0.0300 
2007      1     20     1.3075    -0.0269 
2007      1     21     1.3076    -0.0304 
2007      1     22     1.3076    -0.0373 
2007      1     23     1.3077    -0.0348 
2007      1     24     1.3074    -0.0305 
2007      1     25     1.3075    -0.0461 
2007      1     26     1.3077    -0.0686 
2007      1     27     1.3075    -0.0700 
2007      1     28     1.3079    -0.0375 
2007      1     29     1.3081    -0.0131 
2007      1     30     1.3076    -0.0071 
2007      1     31     1.3071    -0.0082 
2007      2      1     1.3074     0.0005 
2007      2      2     1.3076     0.0082 
2007      2      3     1.3072    -0.0020 
2007      2      4     1.3069    -0.0230 
2007      2      5     1.3073    -0.0313 
2007      2      6     1.3078    -0.0433 
2007      2      7     1.3076    -0.0256 
2007      2      8     1.3072     0.0093 
2007      2      9     1.3075     0.0280 
2007      2     10     1.3078     0.0331 
2007      2     11     1.3082     0.0251 
2007      2     12     1.3088     0.0035 
2007      2     13     1.3094    -0.0251 
2007      2     14     1.3096    -0.0339 
2007      2     15     1.3097    -0.0427 
2007      2     16     1.3098    -0.0516 
2007      2     17     1.3098    -0.0315 
2007      2     18     1.3097    -0.0081 
2007      2     19     1.3099    -0.0107 
2007      2     20     1.3096    -0.0128 
2007      2     21     1.3094     0.0094 
2007      2     22     1.3100     0.0385 
2007      2     23     1.3102     0.0324 
2007      2     24     1.3099     0.0190 
2007      2     25     1.3098     0.0047 
2007      2     26     1.3100     0.0004 
2007      2     27     1.3098    -0.0025 
2007      2     28     1.3098    -0.0125 
2007      3      1     1.3099    -0.0059 
2007      3      2     1.3101    -0.0069 
2007      3      3     1.3100    -0.0213 
2007      3      4     1.3099    -0.0395 
2007      3      5     1.3098    -0.0239 
2007      3      6     1.3098     0.0307 
2007      3      7     1.3099     0.0642 
2007      3      8     1.3102     0.0519 
2007      3      9     1.3104     0.0401 
2007      3     10     1.3103     0.0133 
2007      3     11     1.3100    -0.0100 
2007      3     12     1.3097    -0.0144 
2007      3     13     1.3095    -0.0185 
2007      3     14     1.3095    -0.0246 
2007      3     15     1.3094    -0.0077 
2007      3     16     1.3093     0.0126 
2007      3     17     1.3091     0.0265 
2007      3     18     1.3087     0.0373 
2007      3     19     1.3087     0.0477 
2007      3     20     1.3090     0.0337 
2007      3     21     1.3091     0.0003 
2007      3     22     1.3093    -0.0177 
2007      3     23     1.3097    -0.0077 
2007      3     24     1.3102     0.0068 
2007      3     25     1.3102    -0.0005 
2007      3     26     1.3100    -0.0160 
2007      3     27     1.3099    -0.0113 
2007      3     28     1.3098     0.0097 
2007      3     29     1.3099     0.0219 
2007      3     30     1.3101     0.0254 
2007      3     31     1.3100     0.0310 
2007      4      1     1.3103     0.0320 
2007      4      2     1.3109     0.0409 
2007      4      3     1.3111     0.0226 
2007      4      4     1.3112    -0.0019 
2007      4      5     1.3117    -0.0024 
2007      4      6     1.3123     0.0075 
2007      4      7     1.3122     0.0142 
2007      4      8     1.3119     0.0040 
2007      4      9     1.3115    -0.0012 
2007      4     10     1.3115     0.0095 
2007      4     11     1.3116     0.0131 
2007      4     12     1.3114     0.0056 
2007      4     13     1.3111    -0.0036 
2007      4     14     1.3113     0.0002 
2007      4     15     1.3115     0.0100 
2007      4     16     1.3115    -0.0051 
2007      4     17     1.3114    -0.0350 
2007      4     18     1.3114    -0.0506 
2007      4     19     1.3115    -0.0446 
2007      4     20     1.3114    -0.0473 
2007      4     21     1.3110    -0.0425 
2007      4     22     1.3109    -0.0271 
2007      4     23     1.3110    -0.0140 
2007      4     24     1.3111    -0.0097 
2007      4     25     1.3114     0.0023 
2007      4     26     1.3116     0.0043 
2007      4     27     1.3119     0.0099 
2007      4     28     1.3120     0.0132 
2007      4     29     1.3118    -0.0047 
2007      4     30     1.3115    -0.0296 
2007      5      1     1.3111    -0.0339 
2007      5      2     1.3108    -0.0241 
2007      5      3     1.3106    -0.0163 
2007      5      4     1.3105    -0.0222 
2007      5      5     1.3107    -0.0223 
2007      5      6     1.3107    -0.0308 
2007      5      7     1.3103    -0.0468 
2007      5      8     1.3101    -0.0542 
2007      5      9     1.3106    -0.0350 
2007      5     10     1.3109    -0.0089 
2007      5     11     1.3112     0.0068 
2007      5     12     1.3113     0.0179 
2007      5     13     1.3113     0.0146 
2007      5     14     1.3112     0.0000 
2007      5     15     1.3109    -0.0235 
2007      5     16     1.3099    -0.0175 
2007      5     17     1.3093    -0.0060 
2007      5     18     1.3100    -0.0091 
2007      5     19     1.3103    -0.0041 
2007      5     20     1.3102     0.0127 
2007      5     21     1.3102     0.0284 
2007      5     22     1.3102     0.0385 
2007      5     23     1.3110     0.0336 
2007      5     24     1.3122     0.0164 
2007      5     25     1.3134     0.0017 
2007      5     26     1.3140    -0.0116 
2007      5     27     1.3122    -0.0063 
2007      5     28     1.3095    -0.0108 
2007      5     29     1.3085    -0.0183 
2007      5     30     1.3088    -0.0174 
2007      5     31     1.3091    -0.0286 
2007      6      1     1.3094    -0.0319 
2007      6      2     1.3085    -0.0286 
2007      6      3     1.3078    -0.0180 
2007      6      4     1.3078     0.0071 
2007      6      5     1.3077     0.0207 
2007      6      6     1.3075     0.0239 
2007      6      7     1.3073     0.0191 
2007      6      8     1.3072     0.0039 
2007      6      9     1.3071    -0.0180 
2007      6     10     1.3070    -0.0261 
2007      6     11     1.3067    -0.0352 
2007      6     12     1.3065    -0.0456 
2007      6     13     1.3064    -0.0598 
2007      6     14     1.3063    -0.0499 
2007      6     15     1.3060    -0.0191 
2007      6     16     1.3057     0.0000 
2007      6     17     1.3055    -0.0004 
2007      6     18     1.3053    -0.0019 
2007      6     19     1.3051    -0.0058 
2007      6     20     1.3048    -0.0085 
2007      6     21     1.3046    -0.0158 
2007      6     22     1.3043    -0.0413 
2007      6     23     1.3042    -0.0513 
2007      6     24     1.3040    -0.0397 
2007      6     25     1.3040    -0.0282 
2007      6     26     1.3039    -0.0346 
2007      6     27     1.3037    -0.0472 
2007      6     28     1.3037    -0.0498 
2007      6     29     1.3036    -0.0331 
2007      6     30     1.3038    -0.0074 
2007      7      1     1.3040     0.0113 
2007      7      2     1.3042     0.0087 
2007      7      3     1.3044    -0.0023 
2007      7      4     1.3047    -0.0084 
2007      7      5     1.3051    -0.0141 
2007      7      6     1.3053    -0.0267 
2007      7      7     1.3057    -0.0344 
2007      7      8     1.3060    -0.0156 
2007      7      9     1.3062    -0.0007 
2007      7     10     1.3063    -0.0050 
2007      7     11     1.3065    -0.0088 
2007      7     12     1.3066    -0.0104 
2007      7     13     1.3069    -0.0146 
2007      7     14     1.3077    -0.0159 
2007      7     15     1.3090    -0.0128 
2007      7     16     1.3089    -0.0072 
2007      7     17     1.3081     0.0028 
2007      7     18     1.3082    -0.0017 
2007      7     19     1.3083    -0.0243 
2007      7     20     1.3085    -0.0298 
2007      7     21     1.3087    -0.0326 
2007      7     22     1.3089    -0.0416 
2007      7     23     1.3092    -0.0472 
2007      7     24     1.3096    -0.0443 
2007      7     25     1.3098    -0.0360 
2007      7     26     1.3100    -0.0375 
2007      7     27     1.3104    -0.0345 
2007      7     28     1.3106    -0.0181 
2007      7     29     1.3107    -0.0156 
2007      7     30     1.3111    -0.0090 
2007      7     31     1.3113    -0.0072 
2007      8      1     1.3112    -0.0072 
2007      8      2     1.3111    -0.0024 
2007      8      3     1.3112     0.0033 
2007      8      4     1.3111     0.0090 
2007      8      5     1.3111     0.0108 
2007      8      6     1.3112     0.0191 
2007      8      7     1.3112     0.0160 
2007      8      8     1.3113     0.0119 
2007      8      9     1.3113     0.0131 
2007      8     10     1.3108     0.0136 
2007      8     11     1.3107     0.0174 
2007      8     12     1.3107     0.0095 
2007      8     13     1.3103    -0.0071 
2007      8     14     1.3102    -0.0066 
2007      8     15     1.3103    -0.0024 
2007      8     16     1.3105    -0.0129 
2007      8     17     1.3102    -0.0191 
2007      8     18     1.3097    -0.0231 
2007      8     19     1.3099    -0.0266 
2007      8     20     1.3102    -0.0299 
2007      8     21     1.3103    -0.0355 
2007      8     22     1.3098    -0.0373 
2007      8     23     1.3095    -0.0404 
2007      8     24     1.3095    -0.0389 
2007      8     25     1.3095    -0.0296 
2007      8     26     1.3094    -0.0129 
2007      8     27     1.3096    -0.0097 
2007      8     28     1.3096    -0.0022 
2007      8     29     1.3097     0.0102 
2007      8     30     1.3092     0.0000 
2007      8     31     1.3066    -0.0109 
2007      9      1     1.3076    -0.0192 
2007      9      2     1.3098    -0.0094 
2007      9      3     1.3100    -0.0118 
2007      9      4     1.3098    -0.0198 
2007      9      5     1.3091    -0.0166 
2007      9      6     1.3091    -0.0165 
2007      9      7     1.3091    -0.0287 
2007      9      8     1.3091    -0.0323 
2007      9      9     1.3090    -0.0261 
2007      9     10     1.3088    -0.0130 
2007      9     11     1.3091    -0.0009 
2007      9     12     1.3088     0.0152 
2007      9     13     1.3085     0.0191 
2007      9     14     1.3083     0.0246 
2007      9     15     1.3083     0.0068 
2007      9     16     1.3084     0.0023 
2007      9     17     1.3084     0.0066 
2007      9     18     1.3083    -0.0103 
2007      9     19     1.3082    -0.0261 
2007      9     20     1.3083    -0.0291 
2007      9     21     1.3077    -0.0045 
2007      9     22     1.3073     0.0055 
2007      9     23     1.3074    -0.0037 
2007      9     24     1.3078     0.0151 
2007      9     25     1.3080     0.0318 
2007      9     26     1.3073     0.0403 
2007      9     27     1.3073     0.0415 
2007      9     28     1.3073     0.0272 
2007      9     29     1.3072     0.0272 
2007      9     30     1.3077     0.0227 
2007     10      1     1.3082     0.0079 
2007     10      2     1.3077     0.0058 
2007     10      3     1.3069    -0.0073 
2007     10      4     1.3066    -0.0042 
2007     10      5     1.3065     0.0276 
2007     10      6     1.3065     0.0411 
2007     10      7     1.3064     0.0524 
2007     10      8     1.3064     0.0586 
2007     10      9     1.3066     0.0716 
2007     10     10     1.3070     0.0574 
2007     10     11     1.3074     0.0344 
2007     10     12     1.3071     0.0178 
2007     10     13     1.3071    -0.0001 
2007     10     14     1.3081    -0.0112 
2007     10     15     1.3089    -0.0131 
2007     10     16     1.3095    -0.0051 
2007     10     17     1.3097    -0.0022 
2007     10     18     1.3096    -0.0005 
2007     10     19     1.3104     0.0193 
2007     10     20     1.3116     0.0267 
2007     10     21     1.3113     0.0381 
2007     10     22     1.3112     0.0624 
2007     10     23     1.3112     0.0733 
2007     10     24     1.3108     0.0646 
2007     10     25     1.3102     0.0516 
2007     10     26     1.3097     0.0303 
2007     10     27     1.3091     0.0286 
2007     10     28     1.3086     0.0277 
2007     10     29     1.3081     0.0155 
2007     10     30     1.3074    -0.0006 
2007     10     31        NaN    -0.0124 
2007     11      1        NaN    -0.0060 
2007     11      2        NaN    -0.0047 
2007     11      3        NaN    -0.0194 
2007     11      4        NaN    -0.0395 
2007     11      5        NaN    -0.0230 
2007     11      6        NaN    -0.0187 
2007     11      7        NaN    -0.0395 
2007     11      8        NaN    -0.0631 
2007     11      9        NaN    -0.0762 
2007     11     10        NaN    -0.0838 
2007     11     11        NaN    -0.0748 
2007     11     12        NaN    -0.0761 
2007     11     13        NaN    -0.0666 
2007     11     14        NaN    -0.0561 
2007     11     15        NaN    -0.0464 
2007     11     16        NaN    -0.0254 
2007     11     17        NaN    -0.0060 
2007     11     18        NaN    -0.0049 
2007     11     19        NaN    -0.0184 
2007     11     20        NaN    -0.0246 
2007     11     21        NaN    -0.0037 
2007     11     22        NaN    -0.0005 
2007     11     23        NaN    -0.0072 
2007     11     24        NaN    -0.0071 
2007     11     25        NaN    -0.0072 
2007     11     26        NaN     0.0011 
2007     11     27        NaN    -0.0014 
2007     11     28        NaN    -0.0032 
2007     11     29        NaN     0.0011 
2007     11     30        NaN     0.0038 
2007     12      1        NaN     0.0035 
2007     12      2        NaN     0.0013 
2007     12      3        NaN    -0.0300 
2007     12      4        NaN    -0.0385 
2007     12      5        NaN    -0.0076 
2007     12      6        NaN     0.0192 
2007     12      7        NaN     0.0219 
2007     12      8        NaN     0.0021 
2007     12      9        NaN    -0.0111 
2007     12     10        NaN    -0.0107 
2007     12     11        NaN    -0.0045 
2007     12     12        NaN     0.0050 
2007     12     13        NaN     0.0310 
2007     12     14        NaN     0.0592 
2007     12     15        NaN     0.0505 
2007     12     16        NaN     0.0352 
2007     12     17        NaN     0.0400 
2007     12     18        NaN     0.0457 
2007     12     19        NaN     0.0339 
2007     12     20        NaN     0.0021 
2007     12     21        NaN    -0.0217 
2007     12     22        NaN    -0.0277 
2007     12     23        NaN    -0.0379 
2007     12     24        NaN    -0.0403 
2007     12     25        NaN    -0.0322 
2007     12     26        NaN     0.0031 
2007     12     27        NaN     0.0343 
2007     12     28        NaN     0.0344 
2007     12     29        NaN     0.0195 
2007     12     30        NaN    -0.0010 
2007     12     31        NaN    -0.0083 
2008      1      1        NaN    -0.0121 
2008      1      2        NaN    -0.0225 
2008      1      3        NaN    -0.0238 
2008      1      4        NaN    -0.0193 
2008      1      5        NaN    -0.0026 
2008      1      6        NaN     0.0195 
2008      1      7        NaN     0.0348 
2008      1      8        NaN     0.0288 
2008      1      9        NaN     0.0306 
2008      1     10        NaN     0.0235 
2008      1     11        NaN     0.0201 
2008      1     12        NaN     0.0182 
2008      1     13        NaN     0.0127 
2008      1     14        NaN     0.0048 
2008      1     15        NaN    -0.0140 
2008      1     16        NaN    -0.0269 
2008      1     17        NaN    -0.0165 
2008      1     18        NaN     0.0147 
2008      1     19        NaN     0.0267 
2008      1     20        NaN     0.0380 
2008      1     21        NaN     0.0438 
2008      1     22        NaN     0.0360 
2008      1     23        NaN     0.0216 
2008      1     24        NaN     0.0146 
2008      1     25        NaN     0.0242 
2008      1     26        NaN     0.0452 
2008      1     27        NaN     0.0592 
2008      1     28        NaN     0.0424 
2008      1     29        NaN     0.0157 
2008      1     30        NaN    -0.0093 
2008      1     31        NaN    -0.0096 
2008      2      1        NaN     0.0001 
2008      2      2        NaN    -0.0198 
2008      2      3        NaN    -0.0336 
2008      2      4        NaN    -0.0221 
2008      2      5        NaN     0.0057 
2008      2      6        NaN     0.0334 
2008      2      7        NaN     0.0352 
2008      2      8        NaN     0.0395 
2008      2      9        NaN     0.0437 
2008      2     10        NaN     0.0474 
2008      2     11        NaN     0.0333 
2008      2     12        NaN     0.0400 
2008      2     13        NaN     0.0449 
2008      2     14        NaN     0.0273 
2008      2     15        NaN    -0.0006 
2008      2     16        NaN    -0.0071 
2008      2     17        NaN     0.0073 
2008      2     18        NaN     0.0213 
2008      2     19        NaN     0.0131 
2008      2     20        NaN     0.0029 
2008      2     21        NaN     0.0084 
2008      2     22        NaN     0.0127 
2008      2     23        NaN     0.0081 
2008      2     24        NaN    -0.0021 
2008      2     25        NaN    -0.0140 
2008      2     26        NaN    -0.0231 
2008      2     27        NaN    -0.0157 
2008      2     28        NaN    -0.0061 
2008      2     29        NaN     0.0157 
2008      3      1        NaN     0.0147 
2008      3      2        NaN    -0.0026 
2008      3      3        NaN    -0.0009 
2008      3      4        NaN     0.0128 
2008      3      5        NaN     0.0353 
2008      3      6        NaN     0.0399 
2008      3      7        NaN     0.0327 
2008      3      8        NaN     0.0247 
2008      3      9        NaN     0.0077 
2008      3     10        NaN     0.0009 
2008      3     11        NaN     0.0021 
2008      3     12        NaN     0.0185 
2008      3     13        NaN     0.0163 
2008      3     14        NaN     0.0102 
2008      3     15        NaN     0.0244 
2008      3     16        NaN     0.0347 
2008      3     17        NaN     0.0150 
2008      3     18        NaN    -0.0040 
2008      3     19        NaN    -0.0111 
2008      3     20        NaN    -0.0047 
2008      3     21        NaN    -0.0022 
2008      3     22        NaN    -0.0130 
2008      3     23        NaN    -0.0065 
2008      3     24        NaN     0.0105 
2008      3     25        NaN     0.0074 
2008      3     26        NaN    -0.0099 
2008      3     27        NaN    -0.0101 
2008      3     28        NaN     0.0019 
2008      3     29        NaN     0.0117 
2008      3     30        NaN     0.0208 
2008      3     31        NaN     0.0250 
2008      4      1        NaN     0.0278 
2008      4      2        NaN     0.0408 
2008      4      3        NaN     0.0455 
2008      4      4        NaN     0.0480 
2008      4      5        NaN     0.0455 
2008      4      6        NaN     0.0186 
2008      4      7        NaN    -0.0064 
2008      4      8        NaN    -0.0280 
2008      4      9        NaN    -0.0562 
2008      4     10        NaN    -0.0629 
2008      4     11        NaN    -0.0518 
2008      4     12        NaN    -0.0219 
2008      4     13        NaN     0.0037 
2008      4     14        NaN        NaN 
