  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $35.86 |   | $22.91 | 
  | $12.95 | 
| 2015 | $34.95 | +2.6% | $22.33 | 
+2.6% | $12.62 | 
| 2014 | $34.29 | +1.9% | $21.91 | 
+1.9% | $12.38 | 
| 2013 | $33.64 | +1.9% | $21.49 | 
+1.9% | $12.15 | 
| 2012 | $32.99 | +2.0% | $21.07 | 
+2.0% | $11.91 | 
| 2011 | $32.47 | +1.6% | $20.75 | 
+1.6% | $11.73 | 
| 2010 | $31.90 | +1.8% | $20.38 | 
+1.8% | $11.52 | 
| 2009 | $31.56 | +1.1% | $20.16 | 
+1.1% | $11.40 | 
| 2008 | $30.62 | +3.1% | $19.56 | 
+3.1% | $11.06 | 
| 2007 | $29.60 | +3.5% | $18.91 | 
+3.5% | $10.69 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $35.86 |   | $20.85 | 
  | $15.01 | 
| 2015 | $34.95 | +2.6% | $20.27 | 
+2.9% | $14.68 | 
| 2014 | $34.29 | +1.9% | $19.83 | 
+2.2% | $14.46 | 
| 2013 | $33.64 | +1.9% | $19.43 | 
+2.1% | $14.21 | 
| 2012 | $32.99 | +2.0% | $19.10 | 
+1.7% | $13.89 | 
| 2011 | $32.47 | +1.6% | $18.80 | 
+1.6% | $13.67 | 
| 2010 | $31.90 | +1.8% | $18.48 | 
+1.7% | $13.42 | 
| 2009 | $31.56 | +1.1% | $18.23 | 
+1.4% | $13.33 | 
| 2008 | $30.62 | +3.1% | $17.77 | 
+2.6% | $12.86 | 
| 2007 | $29.60 | +3.5% | $17.20 | 
+3.3% | $12.40 | 
  | 
| Reference Date: 1st Quarter 2016 |