YEAR CORRS RBAR SDEV SERR EPS CORES 1882. 1. 0.4319 0.0000 0.0000 0.6032 2.00 1900. 1. 0.5769 0.0000 0.0000 0.7696 2.45 1910. 1. 0.3327 0.0000 0.0000 0.6324 3.45 1920. 6. 0.4255 0.2409 0.0984 0.7822 4.85 1930. 6. 0.3924 0.2495 0.1019 0.8474 8.60 1940. 15. 0.8213 0.0842 0.0217 0.9846 13.95 1950. 66. 0.6765 0.1529 0.0188 0.9727 17.05 1960. 136. 0.3913 0.2455 0.0210 0.9198 17.85 1970. 153. 0.4263 0.2001 0.0162 0.9304 18.00 1980. 136. 0.6495 0.1882 0.0161 0.9707 17.90