  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $21.33 |   | $33.95 | 
  | -$12.62 | 
| 2015 | $20.59 | +3.6% | $32.77 | 
+3.6% | -$12.18 | 
| 2014 | $20.10 | +2.4% | $32.00 | 
+2.4% | -$11.89 | 
| 2013 | $19.62 | +2.5% | $31.23 | 
+2.5% | -$11.60 | 
| 2012 | $19.30 | +1.7% | $30.72 | 
+1.7% | -$11.41 | 
| 2011 | $19.00 | +1.6% | $30.24 | 
+1.6% | -$11.23 | 
| 2010 | $18.59 | +2.2% | $29.60 | 
+2.2% | -$11.00 | 
| 2009 | $18.46 | +.7% | $29.38 | 
+.7% | -$10.92 | 
| 2008 | $17.89 | +3.2% | $28.47 | 
+3.2% | -$10.58 | 
| 2007 | $17.30 | +3.4% | $27.54 | 
+3.4% | -$10.23 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $21.33 |   | $20.85 | 
  | $0.48 | 
| 2015 | $20.59 | +3.6% | $20.27 | 
+2.9% | $0.32 | 
| 2014 | $20.10 | +2.4% | $19.83 | 
+2.2% | $0.27 | 
| 2013 | $19.62 | +2.5% | $19.43 | 
+2.1% | $0.18 | 
| 2012 | $19.30 | +1.7% | $19.10 | 
+1.7% | $0.20 | 
| 2011 | $19.00 | +1.6% | $18.80 | 
+1.6% | $0.20 | 
| 2010 | $18.59 | +2.2% | $18.48 | 
+1.7% | $0.11 | 
| 2009 | $18.46 | +.7% | $18.23 | 
+1.4% | $0.23 | 
| 2008 | $17.89 | +3.2% | $17.77 | 
+2.6% | $0.12 | 
| 2007 | $17.30 | +3.4% | $17.20 | 
+3.3% | $0.10 | 
  | 
| Reference Date: 1st Quarter 2016 |