This is the total employed civilian population ages 16+, including a breakdown by sex. Census counts military personnel separately. Interesting fact, the Bureau of Labor Statistics reports that the labor force of workers over 75 is projected to increase 96.5% from 2020-2030.
Note about the data - (1) bar values = percentage of employed civilian population out of total population 16+ (2) although sex is collected as binary data in the Census, it may not accurately represent how many individuals feel about their gender.