YEAR CORRS RBAR SDEV SERR EPS CORES 1920. 190. 0.4402 0.2447 0.0178 0.9402 20.00 1930. 190. 0.4652 0.2234 0.0162 0.9456 20.00 1940. 190. 0.4944 0.2780 0.0202 0.9514 20.00 1950. 190. 0.5105 0.2161 0.0157 0.9543 20.00 1960. 190. 0.5912 0.2080 0.0151 0.9666 20.00 1970. 190. 0.6241 0.2362 0.0171 0.9708 20.00 1980. 190. 0.5142 0.2754 0.0200 0.9549 20.00