“Families are classified either as married-couple families or as families maintained by women or men without spouses present,” explains the bureau. “Families include those without children as well as those with children under age 18.”

There were 81,410,000 families in the United States in 2015. Of those, there were 16,060,000 families in which no member was employed, or 19.7 percent of the total.

The number has remained relatively steady since the Bureau of Labor Statistics started tracking this data since 1995.