  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $20.34 |   | $21.77 | 
  | -$1.43 | 
| 2015 | $19.80 | +2.7% | $21.19 | 
+2.7% | -$1.39 | 
| 2014 | $19.41 | +2.0% | $20.77 | 
+2.0% | -$1.36 | 
| 2013 | $19.16 | +1.3% | $20.51 | 
+1.3% | -$1.34 | 
| 2012 | $18.88 | +1.5% | $20.21 | 
+1.5% | -$1.32 | 
| 2011 | $18.62 | +1.4% | $19.93 | 
+1.4% | -$1.30 | 
| 2010 | $18.42 | +1.1% | $19.72 | 
+1.1% | -$1.29 | 
| 2009 | $18.06 | +2.0% | $19.33 | 
+2.0% | -$1.26 | 
| 2008 | $17.57 | +2.8% | $18.80 | 
+2.8% | -$1.23 | 
| 2007 | $16.88 | +4.1% | $18.07 | 
+4.1% | -$1.18 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $20.34 |   | $21.85 | 
  | -$1.51 | 
| 2015 | $19.80 | +2.7% | $21.24 | 
+2.9% | -$1.43 | 
| 2014 | $19.41 | +2.0% | $20.78 | 
+2.2% | -$1.37 | 
| 2013 | $19.16 | +1.3% | $20.37 | 
+2.1% | -$1.20 | 
| 2012 | $18.88 | +1.5% | $20.02 | 
+1.7% | -$1.13 | 
| 2011 | $18.62 | +1.4% | $19.70 | 
+1.6% | -$1.08 | 
| 2010 | $18.42 | +1.1% | $19.37 | 
+1.7% | -$0.94 | 
| 2009 | $18.06 | +2.0% | $19.11 | 
+1.4% | -$1.04 | 
| 2008 | $17.57 | +2.8% | $18.62 | 
+2.6% | -$1.05 | 
| 2007 | $16.88 | +4.1% | $18.02 | 
+3.3% | -$1.14 | 
  | 
| Reference Date: 1st Quarter 2016 |