  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $16.71 |   | $17.86 | 
  | -$1.15 | 
| 2015 | $16.18 | +3.3% | $17.29 | 
+3.3% | -$1.11 | 
| 2014 | $15.81 | +2.3% | $16.90 | 
+2.3% | -$1.08 | 
| 2013 | $15.51 | +1.9% | $16.58 | 
+1.9% | -$1.06 | 
| 2012 | $15.26 | +1.7% | $16.31 | 
+1.7% | -$1.04 | 
| 2011 | $15.01 | +1.6% | $16.04 | 
+1.6% | -$1.03 | 
| 2010 | $14.85 | +1.1% | $15.87 | 
+1.1% | -$1.02 | 
| 2009 | $14.59 | +1.8% | $15.59 | 
+1.8% | -$1.00 | 
| 2008 | $14.21 | +2.7% | $15.19 | 
+2.7% | -$0.97 | 
| 2007 | $13.88 | +2.3% | $14.84 | 
+2.3% | -$0.95 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $16.71 |   | $20.85 | 
  | -$4.14 | 
| 2015 | $16.18 | +3.3% | $20.27 | 
+2.9% | -$4.08 | 
| 2014 | $15.81 | +2.3% | $19.83 | 
+2.2% | -$4.01 | 
| 2013 | $15.51 | +1.9% | $19.43 | 
+2.1% | -$3.91 | 
| 2012 | $15.26 | +1.7% | $19.10 | 
+1.7% | -$3.84 | 
| 2011 | $15.01 | +1.6% | $18.80 | 
+1.6% | -$3.78 | 
| 2010 | $14.85 | +1.1% | $18.48 | 
+1.7% | -$3.63 | 
| 2009 | $14.59 | +1.8% | $18.23 | 
+1.4% | -$3.64 | 
| 2008 | $14.21 | +2.7% | $17.77 | 
+2.6% | -$3.55 | 
| 2007 | $13.88 | +2.3% | $17.20 | 
+3.3% | -$3.31 | 
  | 
| Reference Date: 1st Quarter 2016 |