  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $26.00 |   | $24.44 | 
  | $1.56 | 
| 2015 | $25.35 | +2.5% | $23.83 | 
+2.5% | $1.52 | 
| 2014 | $24.83 | +2.1% | $23.34 | 
+2.1% | $1.49 | 
| 2013 | $24.31 | +2.1% | $22.85 | 
+2.1% | $1.46 | 
| 2012 | $23.96 | +1.5% | $22.52 | 
+1.5% | $1.44 | 
| 2011 | $23.44 | +2.2% | $22.03 | 
+2.2% | $1.41 | 
| 2010 | $23.17 | +1.2% | $21.78 | 
+1.2% | $1.39 | 
| 2009 | $22.77 | +1.7% | $21.40 | 
+1.7% | $1.37 | 
| 2008 | $22.10 | +3.0% | $20.78 | 
+3.0% | $1.33 | 
| 2007 | $21.46 | +3.0% | $20.17 | 
+3.0% | $1.29 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $26.00 |   | $20.85 | 
  | $5.15 | 
| 2015 | $25.35 | +2.5% | $20.27 | 
+2.9% | $5.09 | 
| 2014 | $24.83 | +2.1% | $19.83 | 
+2.2% | $5.00 | 
| 2013 | $24.31 | +2.1% | $19.43 | 
+2.1% | $4.88 | 
| 2012 | $23.96 | +1.5% | $19.10 | 
+1.7% | $4.86 | 
| 2011 | $23.44 | +2.2% | $18.80 | 
+1.6% | $4.64 | 
| 2010 | $23.17 | +1.2% | $18.48 | 
+1.7% | $4.68 | 
| 2009 | $22.77 | +1.7% | $18.23 | 
+1.4% | $4.54 | 
| 2008 | $22.10 | +3.0% | $17.77 | 
+2.6% | $4.34 | 
| 2007 | $21.46 | +3.0% | $17.20 | 
+3.3% | $4.26 | 
  | 
| Reference Date: 1st Quarter 2016 |