It was a typo, should have been 1970.<quoted text>
Black illegitimacy was 25% in 1965, is now 72%.
Was unable to confirm your claim about black high school education rates in 1070, but having a high school "diploma" (certificate of attendance) means nothing about educational level.
Since you are talking about legitimate births, the gap between white women & Black women has been shrinking. It was 7 times higher now its less than double.