This occupation supported 947,200 jobs in 2012 and 972,100 jobs in 2014, reflecting an increase of 2.6%. In 2012, this occupation was projected to decrease by 3.4% in 2022 to 915,000 jobs. As of 2014, to keep pace with prediction, the expected number of jobs was 940,700, compared with an observed value of 972,100, 3.3% higher than expected. This indicates current employment trends are better than the 2012 trend within this occupation. In 2014, this occupation was projected to decrease by 6.0% in 2024 to 914,900 jobs. Linear extrapolation of the 2012 projection for 2022 results in an expected number of 908,500 jobs for 2024, 0.7% lower than the 2014 projection for 2024. This indicates expectations for future employment trends are about on track with the 2012 trend within this occupation.