<P> Since 1983 the percentage of people either graduating from high school or failing to complete high school but getting a GED certification has increased from 85 % to 88 % . The greatest increases in educational attainment were documented in the 1950s , 60s and 70s . In the 1950s and much of the 1960s high school graduates constituted about 50 % of those considered adults ( 25 and above ) . For young adults aged between 25 and 29 , the percentage of either high school graduates or GED obtainers was roughly 50 % in 1950 versus 90 % today . </P>
<P> Since 1983 the percentage of people either graduating from high school or failing to complete high school but getting a GED certification has increased from 85 % to 88 % . The greatest increases in educational attainment were documented in the 1950s , 60s and 70s . In the 1950s and much of the 1960s high school graduates constituted about 50 % of those considered adults ( 25 and above ) . For young adults aged between 25 and 29 , the percentage of either high school graduates or GED obtainers was roughly 50 % in 1950 versus 90 % today . </P>
what percentage of the us has a high school diploma
what percentage of the us has a high school diploma
90 %
90 %