This occupation supported 7,167,600 jobs in 2012 and 7,565,300 jobs in 2014, reflecting an increase of 5.5%. In 2012, this occupation was projected to increase by 12.5% in 2022 to 8,065,700 jobs. As of 2014, to keep pace with prediction, the expected number of jobs was 7,347,200, compared with an observed value of 7,565,300, 3.0% 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 8.8% in 2024 to 8,197,799 jobs. Linear extrapolation of the 2012 projection for 2022 results in an expected number of 8,245,299 jobs for 2024, 0.6% higher than the 2014 projection for 2024. This indicates expectations for future employment trends are about on track with the 2012 trend within this occupation.