#2 - Interesting fact about topic (from encyclopedia or CQ Researcher)

"Union membership stood last year at 14.6 million nonfarm private- and public-sector employees, or 11.1 percent of the nation's workforce. In 1983, the first year for which comparable figures are available, unions had 17.7 million members, or 20.1 percent of workers."

From: McCutcheon, C. (2015, August 7). Unions at a crossroads. CQ Researcher, 25, 673-696. Retrieved from http://library.cqpress.com/