Final answer:
Union membership in recent years has grown in the service sectors, while declining in the manufacturing sector.
Step-by-step explanation:
In recent years, union membership in the service sectors has seen growth while membership in the manufacturing sector has declined. According to the U.S. Department of Labor's Bureau of Labor Statistics, jobs in services have increased dramatically, and jobs in government have also increased modestly. However, jobs in manufacturing have remained relatively stagnant or trended down.