YEAR CORRS RBAR SDEV SERR EPS CORES 1910. 378. 0.4806 0.1760 0.0091 0.9651 29.90 1920. 435. 0.4431 0.1883 0.0090 0.9598 30.00 1930. 435. 0.4801 0.1590 0.0076 0.9652 30.00 1940. 435. 0.4304 0.1947 0.0093 0.9578 30.00 1950. 435. 0.4519 0.2110 0.0101 0.9611 30.00 1960. 325. 0.3829 0.2124 0.0118 0.9479 29.30 1970. 3. 0.2629 0.0541 0.0312 0.8907 22.85