  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $35.74 |   | $23.85 | 
  | $11.89 | 
| 2015 | $34.83 | +2.6% | $23.24 | 
+2.6% | $11.59 | 
| 2014 | $34.18 | +1.9% | $22.81 | 
+1.9% | $11.37 | 
| 2013 | $33.53 | +1.9% | $22.37 | 
+1.9% | $11.15 | 
| 2012 | $32.88 | +2.0% | $21.94 | 
+2.0% | $10.94 | 
| 2011 | $32.36 | +1.6% | $21.60 | 
+1.6% | $10.77 | 
| 2010 | $31.80 | +1.8% | $21.22 | 
+1.8% | $10.58 | 
| 2009 | $31.46 | +1.1% | $20.99 | 
+1.1% | $10.47 | 
| 2008 | $30.52 | +3.1% | $20.37 | 
+3.1% | $10.15 | 
| 2007 | $29.50 | +3.5% | $19.69 | 
+3.5% | $9.81 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $35.74 |   | $20.53 | 
  | $15.21 | 
| 2015 | $34.83 | +2.6% | $19.96 | 
+2.9% | $14.88 | 
| 2014 | $34.18 | +1.9% | $19.53 | 
+2.2% | $14.65 | 
| 2013 | $33.53 | +1.9% | $19.14 | 
+2.1% | $14.39 | 
| 2012 | $32.88 | +2.0% | $18.81 | 
+1.7% | $14.07 | 
| 2011 | $32.36 | +1.6% | $18.51 | 
+1.6% | $13.85 | 
| 2010 | $31.80 | +1.8% | $18.20 | 
+1.7% | $13.60 | 
| 2009 | $31.46 | +1.1% | $17.95 | 
+1.4% | $13.50 | 
| 2008 | $30.52 | +3.1% | $17.49 | 
+2.6% | $13.03 | 
| 2007 | $29.50 | +3.5% | $16.94 | 
+3.3% | $12.56 | 
  | 
| Reference Date: 1st Quarter 2016 |