This occupation supported 9,245,700 jobs in 2012 and 9,748,500 jobs in 2014, reflecting an increase of 5.4%. In 2012, this occupation was projected to increase by 8.6% in 2022 to 10,036,400 jobs. As of 2014, to keep pace with prediction, the expected number of jobs was 9,403,800, compared with an observed value of 9,748,500, 3.7% higher than expected. This indicates current employment trends are better than the 2012 trend within this occupation. In 2014, this occupation was projected to increase by 5.0% in 2024 to 10,215,300 jobs. Linear extrapolation of the 2012 projection for 2022 results in an expected number of 10,194,500 jobs for 2024, 0.2% 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.