It has 366 days instead of the normal 365 days. The extra day is added in February, which has 29 days instead of the normal 28 days. Leap years occur every 4 years. 2016 is a leap year and so is 2020.
The difference between White males and females was 4.9 years, with life expectancies at birth of 75.7 and 80.6 years, respectively. White females could expect to live 3.8 years longer than Black females. Life expectancy has increased since 1970 for males and females in both racial groups.
At age 69, the Hispanic, non-Hispanic white, and non-Hispanic black average life expectancy is 15.70 years. Hispanics and non-Hispanic blacks have a life expectancy difference of 2.50 years when age 69. The greatest disparity in life expectancy is between Hispanic females and non-Hispanic black males.