  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $25.73 |   | $19.44 | 
  | $6.29 | 
| 2015 | $24.80 | +3.8% | $18.74 | 
+3.8% | $6.06 | 
| 2014 | $24.31 | +2.0% | $18.37 | 
+2.0% | $5.94 | 
| 2013 | $23.83 | +2.0% | $18.00 | 
+2.0% | $5.82 | 
| 2012 | $23.42 | +1.7% | $17.70 | 
+1.7% | $5.73 | 
| 2011 | $23.00 | +1.8% | $17.38 | 
+1.8% | $5.62 | 
| 2010 | $22.63 | +1.6% | $17.10 | 
+1.6% | $5.53 | 
| 2009 | $22.21 | +1.9% | $16.78 | 
+1.9% | $5.43 | 
| 2008 | $21.60 | +2.8% | $16.32 | 
+2.8% | $5.28 | 
| 2007 | $20.91 | +3.3% | $15.80 | 
+3.3% | $5.11 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $25.73 |   | $20.85 | 
  | $4.88 | 
| 2015 | $24.80 | +3.8% | $20.27 | 
+2.9% | $4.53 | 
| 2014 | $24.31 | +2.0% | $19.83 | 
+2.2% | $4.48 | 
| 2013 | $23.83 | +2.0% | $19.43 | 
+2.1% | $4.39 | 
| 2012 | $23.42 | +1.7% | $19.10 | 
+1.7% | $4.32 | 
| 2011 | $23.00 | +1.8% | $18.80 | 
+1.6% | $4.20 | 
| 2010 | $22.63 | +1.6% | $18.48 | 
+1.7% | $4.15 | 
| 2009 | $22.21 | +1.9% | $18.23 | 
+1.4% | $3.97 | 
| 2008 | $21.60 | +2.8% | $17.77 | 
+2.6% | $3.83 | 
| 2007 | $20.91 | +3.3% | $17.20 | 
+3.3% | $3.71 | 
  | 
| Reference Date: 1st Quarter 2016 |