  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $11.14 |   | $15.79 | 
  | -$4.65 | 
| 2015 | $10.84 | +2.7% | $15.37 | 
+2.7% | -$4.52 | 
| 2014 | $10.63 | +2.0% | $15.06 | 
+2.0% | -$4.43 | 
| 2013 | $10.49 | +1.3% | $14.87 | 
+1.3% | -$4.38 | 
| 2012 | $10.34 | +1.5% | $14.66 | 
+1.5% | -$4.31 | 
| 2011 | $10.20 | +1.4% | $14.45 | 
+1.4% | -$4.25 | 
| 2010 | $10.09 | +1.1% | $14.30 | 
+1.1% | -$4.21 | 
| 2009 | $9.89 | +2.0% | $14.02 | 
+2.0% | -$4.12 | 
| 2008 | $9.62 | +2.8% | $13.64 | 
+2.8% | -$4.01 | 
| 2007 | $9.24 | +4.1% | $13.10 | 
+4.1% | -$3.85 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $11.14 |   | $23.35 | 
  | -$12.21 | 
| 2015 | $10.84 | +2.7% | $22.70 | 
+2.9% | -$11.85 | 
| 2014 | $10.63 | +2.0% | $22.21 | 
+2.2% | -$11.58 | 
| 2013 | $10.49 | +1.3% | $21.76 | 
+2.1% | -$11.27 | 
| 2012 | $10.34 | +1.5% | $21.39 | 
+1.7% | -$11.04 | 
| 2011 | $10.20 | +1.4% | $21.05 | 
+1.6% | -$10.85 | 
| 2010 | $10.09 | +1.1% | $20.70 | 
+1.7% | -$10.61 | 
| 2009 | $9.89 | +2.0% | $20.42 | 
+1.4% | -$10.52 | 
| 2008 | $9.62 | +2.8% | $19.90 | 
+2.6% | -$10.27 | 
| 2007 | $9.24 | +4.1% | $19.26 | 
+3.3% | -$10.01 | 
  | 
| Reference Date: 1st Quarter 2016 |