This occupation supported 8,049,700 jobs in 2012 and 8,236,500 jobs in 2014, reflecting an increase of 2.3%. In 2012, this occupation was projected to increase by 21.5% in 2022 to 9,782,600 jobs. As of 2014, to keep pace with prediction, the expected number of jobs was 8,396,200, compared with an observed value of 8,236,500, 1.9% lower 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 16.7% in 2024 to 9,584,600 jobs. Linear extrapolation of the 2012 projection for 2022 results in an expected number of 10,129,100 jobs for 2024, 5.7% higher than the 2014 projection for 2024. This indicates expectations for future employment trends are much worse than the 2012 trend within this occupation.