YEAR CORRS RBAR SDEV SERR EPS CORES 1900. 6. 0.6478 0.1250 0.0510 0.9535 11.15 1920. 66. 0.4309 0.2739 0.0337 0.9287 17.20 1930. 190. 0.6253 0.1783 0.0129 0.9709 20.00 1940. 190. 0.6618 0.1586 0.0115 0.9751 20.00 1950. 190. 0.5957 0.1807 0.0131 0.9672 20.00 1960. 190. 0.5881 0.1981 0.0144 0.9662 20.00 1970. 190. 0.5132 0.2517 0.0183 0.9547 20.00 1980. 190. 0.4590 0.2667 0.0194 0.9443 20.00