  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $34.83 |   | $21.77 | 
  | $13.06 | 
| 2015 | $33.90 | +2.7% | $21.19 | 
+2.7% | $12.71 | 
| 2014 | $33.23 | +2.0% | $20.77 | 
+2.0% | $12.46 | 
| 2013 | $32.81 | +1.3% | $20.51 | 
+1.3% | $12.30 | 
| 2012 | $32.33 | +1.5% | $20.21 | 
+1.5% | $12.12 | 
| 2011 | $31.88 | +1.4% | $19.93 | 
+1.4% | $11.95 | 
| 2010 | $31.54 | +1.1% | $19.72 | 
+1.1% | $11.83 | 
| 2009 | $30.93 | +2.0% | $19.33 | 
+2.0% | $11.60 | 
| 2008 | $30.08 | +2.8% | $18.80 | 
+2.8% | $11.28 | 
| 2007 | $28.90 | +4.1% | $18.07 | 
+4.1% | $10.84 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $34.83 |   | $21.85 | 
  | $12.98 | 
| 2015 | $33.90 | +2.7% | $21.24 | 
+2.9% | $12.66 | 
| 2014 | $33.23 | +2.0% | $20.78 | 
+2.2% | $12.44 | 
| 2013 | $32.81 | +1.3% | $20.37 | 
+2.1% | $12.44 | 
| 2012 | $32.33 | +1.5% | $20.02 | 
+1.7% | $12.31 | 
| 2011 | $31.88 | +1.4% | $19.70 | 
+1.6% | $12.18 | 
| 2010 | $31.54 | +1.1% | $19.37 | 
+1.7% | $12.17 | 
| 2009 | $30.93 | +2.0% | $19.11 | 
+1.4% | $11.82 | 
| 2008 | $30.08 | +2.8% | $18.62 | 
+2.6% | $11.46 | 
| 2007 | $28.90 | +4.1% | $18.02 | 
+3.3% | $10.88 | 
  | 
| Reference Date: 1st Quarter 2016 |