  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $19.52 |   | $30.04 | 
  | -$10.52 | 
| 2015 | $19.02 | +2.6% | $29.28 | 
+2.6% | -$10.25 | 
| 2014 | $18.67 | +1.9% | $28.73 | 
+1.9% | -$10.06 | 
| 2013 | $18.31 | +1.9% | $28.18 | 
+1.9% | -$9.86 | 
| 2012 | $17.96 | +2.0% | $27.63 | 
+2.0% | -$9.67 | 
| 2011 | $17.68 | +1.6% | $27.20 | 
+1.6% | -$9.52 | 
| 2010 | $17.37 | +1.8% | $26.73 | 
+1.8% | -$9.35 | 
| 2009 | $17.18 | +1.1% | $26.44 | 
+1.1% | -$9.25 | 
| 2008 | $16.67 | +3.1% | $25.65 | 
+3.1% | -$8.98 | 
| 2007 | $16.11 | +3.5% | $24.79 | 
+3.5% | -$8.68 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $19.52 |   | $20.53 | 
  | -$1.01 | 
| 2015 | $19.02 | +2.6% | $19.96 | 
+2.9% | -$0.93 | 
| 2014 | $18.67 | +1.9% | $19.53 | 
+2.2% | -$0.86 | 
| 2013 | $18.31 | +1.9% | $19.14 | 
+2.1% | -$0.82 | 
| 2012 | $17.96 | +2.0% | $18.81 | 
+1.7% | -$0.85 | 
| 2011 | $17.68 | +1.6% | $18.51 | 
+1.6% | -$0.83 | 
| 2010 | $17.37 | +1.8% | $18.20 | 
+1.7% | -$0.83 | 
| 2009 | $17.18 | +1.1% | $17.95 | 
+1.4% | -$0.77 | 
| 2008 | $16.67 | +3.1% | $17.49 | 
+2.6% | -$0.82 | 
| 2007 | $16.11 | +3.5% | $16.94 | 
+3.3% | -$0.82 | 
  | 
| Reference Date: 1st Quarter 2016 |