  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $23.03 |   | $17.86 | 
  | $5.17 | 
| 2015 | $22.30 | +3.3% | $17.29 | 
+3.3% | $5.01 | 
| 2014 | $21.79 | +2.3% | $16.90 | 
+2.3% | $4.89 | 
| 2013 | $21.38 | +1.9% | $16.58 | 
+1.9% | $4.80 | 
| 2012 | $21.03 | +1.7% | $16.31 | 
+1.7% | $4.72 | 
| 2011 | $20.69 | +1.6% | $16.04 | 
+1.6% | $4.64 | 
| 2010 | $20.46 | +1.1% | $15.87 | 
+1.1% | $4.59 | 
| 2009 | $20.11 | +1.8% | $15.59 | 
+1.8% | $4.51 | 
| 2008 | $19.58 | +2.7% | $15.19 | 
+2.7% | $4.40 | 
| 2007 | $19.14 | +2.3% | $14.84 | 
+2.3% | $4.30 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $23.03 |   | $20.85 | 
  | $2.18 | 
| 2015 | $22.30 | +3.3% | $20.27 | 
+2.9% | $2.03 | 
| 2014 | $21.79 | +2.3% | $19.83 | 
+2.2% | $1.96 | 
| 2013 | $21.38 | +1.9% | $19.43 | 
+2.1% | $1.95 | 
| 2012 | $21.03 | +1.7% | $19.10 | 
+1.7% | $1.93 | 
| 2011 | $20.69 | +1.6% | $18.80 | 
+1.6% | $1.89 | 
| 2010 | $20.46 | +1.1% | $18.48 | 
+1.7% | $1.98 | 
| 2009 | $20.11 | +1.8% | $18.23 | 
+1.4% | $1.88 | 
| 2008 | $19.58 | +2.7% | $17.77 | 
+2.6% | $1.82 | 
| 2007 | $19.14 | +2.3% | $17.20 | 
+3.3% | $1.94 | 
  | 
| Reference Date: 1st Quarter 2016 |