This occupation supported 8,861,500 jobs in 2012 and 9,157,500 jobs in 2014, reflecting an increase of 3.3%. In 2012, this occupation was projected to increase by 7.2% in 2022 to 9,498,000 jobs. As of 2014, to keep pace with prediction, the expected number of jobs was 8,988,800, compared with an observed value of 9,157,500, 1.9% higher than expected. This indicates current employment trends are about on track with the 2012 trend within this occupation. In 2014, this occupation was projected to increase by 5.7% in 2024 to 9,662,900 jobs. Linear extrapolation of the 2012 projection for 2022 results in an expected number of 9,625,300 jobs for 2024, 0.4% 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.