  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $35.76 |   | $35.29 | 
  | $0.47 | 
| 2015 | $34.52 | +3.6% | $34.07 | 
+3.6% | $0.45 | 
| 2014 | $33.71 | +2.4% | $33.26 | 
+2.4% | $0.44 | 
| 2013 | $32.89 | +2.5% | $32.46 | 
+2.5% | $0.43 | 
| 2012 | $32.36 | +1.7% | $31.93 | 
+1.7% | $0.43 | 
| 2011 | $31.85 | +1.6% | $31.43 | 
+1.6% | $0.42 | 
| 2010 | $31.17 | +2.2% | $30.76 | 
+2.2% | $0.41 | 
| 2009 | $30.95 | +.7% | $30.54 | 
+.7% | $0.41 | 
| 2008 | $29.99 | +3.2% | $29.60 | 
+3.2% | $0.39 | 
| 2007 | $29.01 | +3.4% | $28.63 | 
+3.4% | $0.38 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $35.76 |   | $21.85 | 
  | $13.91 | 
| 2015 | $34.52 | +3.6% | $21.24 | 
+2.9% | $13.28 | 
| 2014 | $33.71 | +2.4% | $20.78 | 
+2.2% | $12.92 | 
| 2013 | $32.89 | +2.5% | $20.37 | 
+2.1% | $12.52 | 
| 2012 | $32.36 | +1.7% | $20.02 | 
+1.7% | $12.34 | 
| 2011 | $31.85 | +1.6% | $19.70 | 
+1.6% | $12.15 | 
| 2010 | $31.17 | +2.2% | $19.37 | 
+1.7% | $11.80 | 
| 2009 | $30.95 | +.7% | $19.11 | 
+1.4% | $11.84 | 
| 2008 | $29.99 | +3.2% | $18.62 | 
+2.6% | $11.37 | 
| 2007 | $29.01 | +3.4% | $18.02 | 
+3.3% | $10.98 | 
  | 
| Reference Date: 1st Quarter 2016 |