  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $10.10 |   | $27.20 | 
  | -$17.10 | 
| 2015 | $9.83 | +2.7% | $26.48 | 
+2.7% | -$16.64 | 
| 2014 | $9.64 | +2.0% | $25.95 | 
+2.0% | -$16.31 | 
| 2013 | $9.51 | +1.3% | $25.62 | 
+1.3% | -$16.10 | 
| 2012 | $9.38 | +1.5% | $25.25 | 
+1.5% | -$15.87 | 
| 2011 | $9.24 | +1.4% | $24.90 | 
+1.4% | -$15.65 | 
| 2010 | $9.15 | +1.1% | $24.63 | 
+1.1% | -$15.48 | 
| 2009 | $8.97 | +2.0% | $24.15 | 
+2.0% | -$15.18 | 
| 2008 | $8.72 | +2.8% | $23.49 | 
+2.8% | -$14.76 | 
| 2007 | $8.38 | +4.1% | $22.57 | 
+4.1% | -$14.19 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $10.10 |   | $20.85 | 
  | -$10.75 | 
| 2015 | $9.83 | +2.7% | $20.27 | 
+2.9% | -$10.43 | 
| 2014 | $9.64 | +2.0% | $19.83 | 
+2.2% | -$10.19 | 
| 2013 | $9.51 | +1.3% | $19.43 | 
+2.1% | -$9.91 | 
| 2012 | $9.38 | +1.5% | $19.10 | 
+1.7% | -$9.72 | 
| 2011 | $9.24 | +1.4% | $18.80 | 
+1.6% | -$9.55 | 
| 2010 | $9.15 | +1.1% | $18.48 | 
+1.7% | -$9.33 | 
| 2009 | $8.97 | +2.0% | $18.23 | 
+1.4% | -$9.26 | 
| 2008 | $8.72 | +2.8% | $17.77 | 
+2.6% | -$9.04 | 
| 2007 | $8.38 | +4.1% | $17.20 | 
+3.3% | -$8.81 | 
  | 
| Reference Date: 1st Quarter 2016 |