  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $14.97 |   | $17.54 | 
  | -$2.57 | 
| 2015 | $14.50 | +3.3% | $16.98 | 
+3.3% | -$2.48 | 
| 2014 | $14.17 | +2.3% | $16.60 | 
+2.3% | -$2.43 | 
| 2013 | $13.90 | +1.9% | $16.29 | 
+1.9% | -$2.38 | 
| 2012 | $13.67 | +1.7% | $16.01 | 
+1.7% | -$2.34 | 
| 2011 | $13.45 | +1.6% | $15.76 | 
+1.6% | -$2.30 | 
| 2010 | $13.30 | +1.1% | $15.59 | 
+1.1% | -$2.28 | 
| 2009 | $13.07 | +1.8% | $15.32 | 
+1.8% | -$2.24 | 
| 2008 | $12.73 | +2.7% | $14.92 | 
+2.7% | -$2.18 | 
| 2007 | $12.44 | +2.3% | $14.57 | 
+2.3% | -$2.13 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $14.97 |   | $19.32 | 
  | -$4.35 | 
| 2015 | $14.50 | +3.3% | $18.78 | 
+2.9% | -$4.28 | 
| 2014 | $14.17 | +2.3% | $18.38 | 
+2.2% | -$4.21 | 
| 2013 | $13.90 | +1.9% | $18.01 | 
+2.1% | -$4.10 | 
| 2012 | $13.67 | +1.7% | $17.70 | 
+1.7% | -$4.03 | 
| 2011 | $13.45 | +1.6% | $17.42 | 
+1.6% | -$3.97 | 
| 2010 | $13.30 | +1.1% | $17.13 | 
+1.7% | -$3.82 | 
| 2009 | $13.07 | +1.8% | $16.90 | 
+1.4% | -$3.82 | 
| 2008 | $12.73 | +2.7% | $16.46 | 
+2.6% | -$3.73 | 
| 2007 | $12.44 | +2.3% | $15.94 | 
+3.3% | -$3.49 | 
  | 
| Reference Date: 1st Quarter 2016 |