  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $35.85 |   | $27.58 | 
  | $8.27 | 
| 2015 | $34.94 | +2.6% | $26.88 | 
+2.6% | $8.06 | 
| 2014 | $34.29 | +1.9% | $26.38 | 
+1.9% | $7.91 | 
| 2013 | $33.63 | +1.9% | $25.87 | 
+1.9% | $7.76 | 
| 2012 | $32.98 | +2.0% | $25.37 | 
+2.0% | $7.61 | 
| 2011 | $32.46 | +1.6% | $24.98 | 
+1.6% | $7.49 | 
| 2010 | $31.90 | +1.8% | $24.54 | 
+1.8% | $7.36 | 
| 2009 | $31.55 | +1.1% | $24.27 | 
+1.1% | $7.28 | 
| 2008 | $30.61 | +3.1% | $23.55 | 
+3.1% | $7.06 | 
| 2007 | $29.59 | +3.5% | $22.76 | 
+3.5% | $6.83 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $35.85 |   | $23.35 | 
  | $12.50 | 
| 2015 | $34.94 | +2.6% | $22.70 | 
+2.9% | $12.24 | 
| 2014 | $34.29 | +1.9% | $22.21 | 
+2.2% | $12.07 | 
| 2013 | $33.63 | +1.9% | $21.76 | 
+2.1% | $11.87 | 
| 2012 | $32.98 | +2.0% | $21.39 | 
+1.7% | $11.59 | 
| 2011 | $32.46 | +1.6% | $21.05 | 
+1.6% | $11.41 | 
| 2010 | $31.90 | +1.8% | $20.70 | 
+1.7% | $11.20 | 
| 2009 | $31.55 | +1.1% | $20.42 | 
+1.4% | $11.13 | 
| 2008 | $30.61 | +3.1% | $19.90 | 
+2.6% | $10.72 | 
| 2007 | $29.59 | +3.5% | $19.26 | 
+3.3% | $10.33 | 
  | 
| Reference Date: 1st Quarter 2016 |