YEAR CORRS RBAR SDEV SERR EPS CORES 1882. 1. 0.7800 0.0000 0.0000 0.8764 2.00 1900. 1. 0.8591 0.0000 0.0000 0.9372 2.45 1910. 1. 0.8096 0.0000 0.0000 0.9362 3.45 1920. 6. 0.5519 0.2326 0.0950 0.8566 4.85 1930. 6. 0.3051 0.3500 0.1429 0.7906 8.60 1940. 15. 0.7870 0.0715 0.0185 0.9810 13.95 1950. 66. 0.7006 0.1389 0.0171 0.9755 17.05 1960. 136. 0.5318 0.2514 0.0216 0.9530 17.85 1970. 153. 0.4959 0.2399 0.0194 0.9466 18.00 1980. 136. 0.5629 0.2120 0.0182 0.9584 17.90