In the U.S. in 1900 this was 46.3 for males & 48.3 for females; in 2000 it was 74.3 & 79.7
Life expectancy at birth, at age 65, and at age 75 ... - CDC [PAR] ... age 75, by sex, race, and Hispanic origin: United States, selected years 1900-
2010 ...