The May, 2017 workforce participation rate for whites is 62.6%. For Blacks it is 62.4%. For Asians its 63.7% And for Latinos it is 66%.
https://www.bls.gov/news.release/empsit.t02.htm
https://www.bls.gov/news.release/empsit.t03.htm
Those who are not participating in the workforce include full time students over the age of 16 and retired persons.
In May, 1980 Black unemployment hit 20.1%. For May, 2017 Black unemployment is at 7.5%.
http://www.macrotrends.net/2524/black-unemployment-rate-history-chart
https://www.bls.gov/news.release/empsit.t02.htm