Temporary employment is expected to grow by 3%, or 75,384 jobs, from 2014 to 2015, according to a study released today CareerBuilder. And from 2014 to 2019, it is expected to increase 13%, or 354,877 jobs.

“Temporary employment will continue on an upward trajectory as companies look for ways to quickly adapt to market dynamics,” said Eric Gilpin, president of CareerBuilder’s staffing and recruiting and healthcare divisions. “Two in five US employers expect to hire temporary or contract workers this year, which opens new doors for workers who want to build relationships with different organizations and explore career options.”

Among occupations that pay less than $15 per hour, substitute teachers and home health aides are expected to add the most temp jobs from 2014 to 2019, at 33,099 and 20,420 respectively.

Among occupations that pay more than $15 per hour, customer service representatives are expected to add the most temp jobs from 2014 to 2019, at 100,642. Secretaries and administrative assistants, except legal, medical, and executive, follow at 77,660.

Twenty metro areas had a concentration of temporary jobs greater than the 2% national average, according to the report. The Memphis, Tenn., workforce had the largest share of temporary workers at 5.0%. Grand Rapids, Mich., and Indianapolis workforces followed at 4.7% and 3.9% respectively. The Chicago-Naperville, Ind.-Elgin, Wis., area had the largest temp workforce at 150,809.

The study is based on data from Economic Modeling Specialists International, CareerBuilder’s labor market analysis arm that pulls data from over 90 national and state employment resources.