Years Available: 2000–2018
Permanent Link: http://data.sagepub.com/sagestats/16169
General Notes: Data refer to both union members and workers who report no union affiliation but whose jobs are covered by a union or an employee association contract. Data refer to the sole or principal job of full- and part-time wage and salary workers. All self-employed workers are excluded, both those with incorporated businesses as well as those with unincorporated businesses.