"Year","Early career: age 25 to 36","Mid career: age 37 to 48","Late career: age 49 to 60"
1902,,,0.05203685
1903,,,0.0386622
1904,,,0.03524291
1905,,,0.04289807
1906,,,0.04889579
1907,,,0.0465651
1908,,,0.04410355
1909,,,0.03561116
1910,,,0.03884415
1911,,,0.03768252
1912,,,0.03752759
1913,,,0.03020880
1914,,0.02304296,0.03626511
1915,,0.02400689,0.03070362
1916,,0.02535945,0.03310696
1917,,0.02159580,0.03094532
1918,,0.01642797,0.03395311
1919,,0.01381817,0.02854779
1920,,0.01950719,0.03805414
1921,,0.01624959,0.03480193
1922,,0.01744966,0.04430626
1923,,0.01399533,0.03945841
1924,,0.01830065,0.04416283
1925,,0.01608040,0.05394685
1926,0.01467155,0.01879825,0.05804644
1927,0.01286286,0.01337793,0.04583169
1928,0.01496123,0.01926326,0.05922099
1929,0.01528942,0.01713502,0.06257619
1930,0.01295110,0.02015452,0.05954259
1931,0.01187580,0.02039381,0.07718121
1932,0.01240695,0.02774813,0.08199493
1933,0.01216893,0.03131749,0.07921635
1934,0.0125523,0.02925626,0.0923206
1935,0.01130137,0.03123927,0.08238636
1936,0.01322034,0.03290366,0.1032
1937,0.01192843,0.0460659,0.1008703
1938,0.01765448,0.04699905,0.1048689
1939,0.01447936,0.04996837,0.1118247
1940,0.016,0.04504232,0.1158384
1941,0.02403167,0.06787067,0.1322514
1942,0.02664693,0.06789649,0.1262107
1943,0.03125746,0.08341609,0.1367496
1944,0.04016966,0.0919359,0.1501538
1945,0.052013,0.1118177,0.1501538
1946,0.06000839,0.1240535,0.1509308
1947,0.074203,0.1361944,0.1645722
1948,0.0899654,0.1478902,0.1803699
1949,0.1034154,0.1648783,0.1963795
1950,0.1195368,0.1765542,0.2063719
1951,0.1374046,0.1892623,
1952,0.1458086,0.1902385,
1953,0.1486509,0.1964061,
1954,0.1734499,0.1996877,
1955,0.1806892,0.2102882,
1956,0.1870851,0.2179425,
1957,0.1971246,0.2179425,
1958,0.2210124,0.2462331,
1959,0.2138410,0.2392709,
1960,0.2252903,0.2500347,
1961,0.2492573,0.2657793,
1962,0.2518067,0.2683917,
1963,0.2542544,,
1964,0.2612587,,
1965,0.2696493,,
1966,0.2654176,,
1967,0.2656175,,
1968,0.2598879,,
1969,0.2598879,,
1970,0.2540887,,
1971,0.2615143,,
1972,0.254286,,
1973,0.2640830,,
1974,0.2694649,,