  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $29.86 |   | $19.21 | 
  | $10.65 | 
| 2015 | $28.91 | +3.3% | $18.60 | 
+3.3% | $10.31 | 
| 2014 | $28.26 | +2.3% | $18.18 | 
+2.3% | $10.08 | 
| 2013 | $27.72 | +1.9% | $17.84 | 
+1.9% | $9.89 | 
| 2012 | $27.26 | +1.7% | $17.54 | 
+1.7% | $9.72 | 
| 2011 | $26.83 | +1.6% | $17.26 | 
+1.6% | $9.57 | 
| 2010 | $26.53 | +1.1% | $17.07 | 
+1.1% | $9.46 | 
| 2009 | $26.07 | +1.8% | $16.77 | 
+1.8% | $9.30 | 
| 2008 | $25.39 | +2.7% | $16.34 | 
+2.7% | $9.06 | 
| 2007 | $24.81 | +2.3% | $15.96 | 
+2.3% | $8.85 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $29.86 |   | $21.85 | 
  | $8.01 | 
| 2015 | $28.91 | +3.3% | $21.24 | 
+2.9% | $7.67 | 
| 2014 | $28.26 | +2.3% | $20.78 | 
+2.2% | $7.47 | 
| 2013 | $27.72 | +1.9% | $20.37 | 
+2.1% | $7.36 | 
| 2012 | $27.26 | +1.7% | $20.02 | 
+1.7% | $7.25 | 
| 2011 | $26.83 | +1.6% | $19.70 | 
+1.6% | $7.12 | 
| 2010 | $26.53 | +1.1% | $19.37 | 
+1.7% | $7.16 | 
| 2009 | $26.07 | +1.8% | $19.11 | 
+1.4% | $6.97 | 
| 2008 | $25.39 | +2.7% | $18.62 | 
+2.6% | $6.77 | 
| 2007 | $24.81 | +2.3% | $18.02 | 
+3.3% | $6.79 | 
  | 
| Reference Date: 1st Quarter 2016 |