These data reflect a race earnings gap in addition to a gender earnings gap. Earnings ratios are based on median annual earnings of 
full-time, year-round workers, 15 years old and over. Before 1989 earnings are for civilian workers only. Blacks and Asians include people
of  Hispanic ethnicity. People of two or more races are not included beginning 2002. Ratios for Asians from 1988 until 2001 included Pacific  Islanders. Hispanics may be of any race.  Click the Link Below for Earnings and Ratios Sources:
                                                                         
A Chart by Tibco Spotfire 11 Analytics          April 14th 2021

https://www.dol.gov/agencies/wb/data/facts-over-time/earnings-and-earnings-ratios#womens-earnings-by-race-and-ethnicity-as-a-percentage-of-white-non-hispanic-mens-earnings