  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $28.77 |   | $19.44 | 
  | $9.33 | 
| 2015 | $27.73 | +3.8% | $18.74 | 
+3.8% | $8.99 | 
| 2014 | $27.19 | +2.0% | $18.37 | 
+2.0% | $8.82 | 
| 2013 | $26.64 | +2.0% | $18.00 | 
+2.0% | $8.64 | 
| 2012 | $26.19 | +1.7% | $17.70 | 
+1.7% | $8.49 | 
| 2011 | $25.71 | +1.8% | $17.38 | 
+1.8% | $8.34 | 
| 2010 | $25.31 | +1.6% | $17.10 | 
+1.6% | $8.21 | 
| 2009 | $24.83 | +1.9% | $16.78 | 
+1.9% | $8.05 | 
| 2008 | $24.15 | +2.8% | $16.32 | 
+2.8% | $7.83 | 
| 2007 | $23.38 | +3.3% | $15.80 | 
+3.3% | $7.58 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $28.77 |   | $20.85 | 
  | $7.92 | 
| 2015 | $27.73 | +3.8% | $20.27 | 
+2.9% | $7.46 | 
| 2014 | $27.19 | +2.0% | $19.83 | 
+2.2% | $7.35 | 
| 2013 | $26.64 | +2.0% | $19.43 | 
+2.1% | $7.21 | 
| 2012 | $26.19 | +1.7% | $19.10 | 
+1.7% | $7.09 | 
| 2011 | $25.71 | +1.8% | $18.80 | 
+1.6% | $6.91 | 
| 2010 | $25.31 | +1.6% | $18.48 | 
+1.7% | $6.82 | 
| 2009 | $24.83 | +1.9% | $18.23 | 
+1.4% | $6.60 | 
| 2008 | $24.15 | +2.8% | $17.77 | 
+2.6% | $6.39 | 
| 2007 | $23.38 | +3.3% | $17.20 | 
+3.3% | $6.18 | 
  | 
| Reference Date: 1st Quarter 2016 |