The number of workers in Texas who belonged to unions last year was 543,000, up from 518,000 the previous year, the U.S. Bureau of Labor Statistics reported Tuesday.

Despite the increase, the 2014 rate of union membership was unchanged from 2013 at 4.8 percent of all Texas wage and salary workers.

Union membership in Texas hit its peak in 1993 when it averaged7.5 percent, according to the bureau. The lowest point was in 2008 when union membership dipped to 4.5 percent.

Nationwide, union members accounted for11.1 percent of employed wage and salary workers in 2014, down 0.2 percentage point from 2013.

Men in the U.S. had a higher union membership rate, 11.7 percent, than women, 10.5 percent.

New York had the highest union membership rate in the nation at 24.6 percent, followed by Alaska at 22.8 percent and Hawaii at 21.8 percent. North Carolina reported the lowest membership rate at 1.9 percent, followed by South Carolina at 2.2 percent, and Utah and Mississippi, both at 3.7 percent.