Construction firms added jobs in 36 states between August 2013 and August 2014 while construction employment increased in 28 states between July and August, according to an analysis of Labor Department data by the Associated General Contractors of America.

“The number of states with increases in construction employment over the last 12 months moderated in August but remained strongly positive as construction activity continues to spread across most of the nation,” says Ken Simonson, the association’s chief economist. “While most states remain far below pre-recession peak employment levels, more states are approaching previous highs and more contractors have been reporting difficulty in hiring qualified workers. These trends are likely to intensify if the recovery in construction continues.”

Florida added more new construction jobs (43,500 jobs, 11.8 percent) between August 2013 and August 2014, and Nevada (12.8 percent, 7,200 jobs) added the highest percentage of new construction jobs during the past year.

Twelve states and the District of Columbia shed construction jobs during the past 12 months, with construction employment unchanged in Idaho and New Hampshire. New Jersey lost the highest percentage and total, (-8.1 percent, -11,300 jobs).

Twenty-eight states added construction jobs between July and August. California (13,600 jobs, 2.1 percent) added the most jobs, while Nebraska (4.0 percent, 1,800 jobs) had the highest percentage increase for the month.

Twenty-one states and the District of Columbia lost construction jobs for the month, while construction employment was unchanged in Arizona. Ohio (-3,500 jobs, -1.9 percent) lost the most construction jobs between July and August, and South Dakota (-4.1 percent, -900 jobs) experienced the highest monthly percentage decline.