In the U.S. in 1900 this was 46.3 for males & 48.3 for females; in 2000 it was 74.3 & 79.7
Thus
... [DOC] [TLE] Defining Health and Wellness - Life Expectancy - Deaths, Infant ... [PAR] ... dramatically, from 46.3 years in 1900 to 74.3 years in 2000 for males and from 
48.3 years in 1900 to 79.7 in 2000 for females.