  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $28.09 |   | $19.75 | 
  | $8.34 | 
| 2015 | $27.07 | +3.8% | $19.04 | 
+3.8% | $8.04 | 
| 2014 | $26.54 | +2.0% | $18.66 | 
+2.0% | $7.88 | 
| 2013 | $26.01 | +2.0% | $18.29 | 
+2.0% | $7.72 | 
| 2012 | $25.57 | +1.7% | $17.98 | 
+1.7% | $7.59 | 
| 2011 | $25.11 | +1.8% | $17.65 | 
+1.8% | $7.45 | 
| 2010 | $24.71 | +1.6% | $17.37 | 
+1.6% | $7.34 | 
| 2009 | $24.24 | +1.9% | $17.05 | 
+1.9% | $7.20 | 
| 2008 | $23.58 | +2.8% | $16.58 | 
+2.8% | $7.00 | 
| 2007 | $22.83 | +3.3% | $16.05 | 
+3.3% | $6.78 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $28.09 |   | $22.30 | 
  | $5.79 | 
| 2015 | $27.07 | +3.8% | $21.68 | 
+2.9% | $5.40 | 
| 2014 | $26.54 | +2.0% | $21.21 | 
+2.2% | $5.33 | 
| 2013 | $26.01 | +2.0% | $20.78 | 
+2.1% | $5.23 | 
| 2012 | $25.57 | +1.7% | $20.43 | 
+1.7% | $5.14 | 
| 2011 | $25.11 | +1.8% | $20.11 | 
+1.6% | $5.00 | 
| 2010 | $24.71 | +1.6% | $19.77 | 
+1.7% | $4.94 | 
| 2009 | $24.24 | +1.9% | $19.50 | 
+1.4% | $4.74 | 
| 2008 | $23.58 | +2.8% | $19.00 | 
+2.6% | $4.58 | 
| 2007 | $22.83 | +3.3% | $18.40 | 
+3.3% | $4.43 | 
  | 
| Reference Date: 1st Quarter 2016 |