  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $21.00 |   | $23.15 | 
  | -$2.14 | 
| 2015 | $20.48 | +2.5% | $22.57 | 
+2.5% | -$2.09 | 
| 2014 | $20.06 | +2.1% | $22.11 | 
+2.1% | -$2.05 | 
| 2013 | $19.64 | +2.1% | $21.65 | 
+2.1% | -$2.01 | 
| 2012 | $19.35 | +1.5% | $21.33 | 
+1.5% | -$1.98 | 
| 2011 | $18.93 | +2.2% | $20.87 | 
+2.2% | -$1.93 | 
| 2010 | $18.71 | +1.2% | $20.63 | 
+1.2% | -$1.91 | 
| 2009 | $18.39 | +1.7% | $20.27 | 
+1.7% | -$1.88 | 
| 2008 | $17.85 | +3.0% | $19.68 | 
+3.0% | -$1.82 | 
| 2007 | $17.33 | +3.0% | $19.11 | 
+3.0% | -$1.77 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $21.00 |   | $20.53 | 
  | $0.47 | 
| 2015 | $20.48 | +2.5% | $19.96 | 
+2.9% | $0.52 | 
| 2014 | $20.06 | +2.1% | $19.53 | 
+2.2% | $0.53 | 
| 2013 | $19.64 | +2.1% | $19.14 | 
+2.1% | $0.50 | 
| 2012 | $19.35 | +1.5% | $18.81 | 
+1.7% | $0.54 | 
| 2011 | $18.93 | +2.2% | $18.51 | 
+1.6% | $0.42 | 
| 2010 | $18.71 | +1.2% | $18.20 | 
+1.7% | $0.51 | 
| 2009 | $18.39 | +1.7% | $17.95 | 
+1.4% | $0.44 | 
| 2008 | $17.85 | +3.0% | $17.49 | 
+2.6% | $0.36 | 
| 2007 | $17.33 | +3.0% | $16.94 | 
+3.3% | $0.40 | 
  | 
| Reference Date: 1st Quarter 2016 |