  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $15.43 |   | $17.54 | 
  | -$2.11 | 
| 2015 | $14.94 | +3.3% | $16.98 | 
+3.3% | -$2.04 | 
| 2014 | $14.60 | +2.3% | $16.60 | 
+2.3% | -$1.99 | 
| 2013 | $14.33 | +1.9% | $16.29 | 
+1.9% | -$1.95 | 
| 2012 | $14.09 | +1.7% | $16.01 | 
+1.7% | -$1.92 | 
| 2011 | $13.86 | +1.6% | $15.76 | 
+1.6% | -$1.89 | 
| 2010 | $13.71 | +1.1% | $15.59 | 
+1.1% | -$1.87 | 
| 2009 | $13.47 | +1.8% | $15.32 | 
+1.8% | -$1.84 | 
| 2008 | $13.12 | +2.7% | $14.92 | 
+2.7% | -$1.79 | 
| 2007 | $12.82 | +2.3% | $14.57 | 
+2.3% | -$1.75 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $15.43 |   | $19.32 | 
  | -$3.89 | 
| 2015 | $14.94 | +3.3% | $18.78 | 
+2.9% | -$3.83 | 
| 2014 | $14.60 | +2.3% | $18.38 | 
+2.2% | -$3.77 | 
| 2013 | $14.33 | +1.9% | $18.01 | 
+2.1% | -$3.68 | 
| 2012 | $14.09 | +1.7% | $17.70 | 
+1.7% | -$3.61 | 
| 2011 | $13.86 | +1.6% | $17.42 | 
+1.6% | -$3.55 | 
| 2010 | $13.71 | +1.1% | $17.13 | 
+1.7% | -$3.41 | 
| 2009 | $13.47 | +1.8% | $16.90 | 
+1.4% | -$3.42 | 
| 2008 | $13.12 | +2.7% | $16.46 | 
+2.6% | -$3.34 | 
| 2007 | $12.82 | +2.3% | $15.94 | 
+3.3% | -$3.11 | 
  | 
| Reference Date: 1st Quarter 2016 |