In 1970, the median full-time male worker ($9,180)1]) accounted for 93% of a median household income ($9,870)1]).
In 2020, the median full-time male worker ($61,417)2]) accounted for 91% of a median household income ($67,521)3]).
Sources:
1]) https://www2.census.gov/library/publications/1971/demographics/p60-80.pdf (p. 1)
2]) https://www.census.gov/content/dam/Census/library/visualizations/2021/demo/p60-273/figure4.pdf
3]) https://www.census.gov/content/dam/Census/library/publications/2021/demo/p60-273.pdf (p. 27)