  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $14.17 |   | $17.86 | 
  | -$3.69 | 
| 2015 | $13.72 | +3.3% | $17.29 | 
+3.3% | -$3.57 | 
| 2014 | $13.41 | +2.3% | $16.90 | 
+2.3% | -$3.49 | 
| 2013 | $13.16 | +1.9% | $16.58 | 
+1.9% | -$3.42 | 
| 2012 | $12.94 | +1.7% | $16.31 | 
+1.7% | -$3.36 | 
| 2011 | $12.73 | +1.6% | $16.04 | 
+1.6% | -$3.31 | 
| 2010 | $12.59 | +1.1% | $15.87 | 
+1.1% | -$3.27 | 
| 2009 | $12.37 | +1.8% | $15.59 | 
+1.8% | -$3.22 | 
| 2008 | $12.05 | +2.7% | $15.19 | 
+2.7% | -$3.13 | 
| 2007 | $11.77 | +2.3% | $14.84 | 
+2.3% | -$3.06 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $14.17 |   | $20.85 | 
  | -$6.68 | 
| 2015 | $13.72 | +3.3% | $20.27 | 
+2.9% | -$6.54 | 
| 2014 | $13.41 | +2.3% | $19.83 | 
+2.2% | -$6.42 | 
| 2013 | $13.16 | +1.9% | $19.43 | 
+2.1% | -$6.27 | 
| 2012 | $12.94 | +1.7% | $19.10 | 
+1.7% | -$6.16 | 
| 2011 | $12.73 | +1.6% | $18.80 | 
+1.6% | -$6.07 | 
| 2010 | $12.59 | +1.1% | $18.48 | 
+1.7% | -$5.89 | 
| 2009 | $12.37 | +1.8% | $18.23 | 
+1.4% | -$5.86 | 
| 2008 | $12.05 | +2.7% | $17.77 | 
+2.6% | -$5.71 | 
| 2007 | $11.77 | +2.3% | $17.20 | 
+3.3% | -$5.42 | 
  | 
| Reference Date: 1st Quarter 2016 |