  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $17.29 |   | $22.91 | 
  | -$5.62 | 
| 2015 | $16.85 | +2.6% | $22.33 | 
+2.6% | -$5.47 | 
| 2014 | $16.54 | +1.9% | $21.91 | 
+1.9% | -$5.37 | 
| 2013 | $16.22 | +1.9% | $21.49 | 
+1.9% | -$5.27 | 
| 2012 | $15.90 | +2.0% | $21.07 | 
+2.0% | -$5.16 | 
| 2011 | $15.66 | +1.6% | $20.75 | 
+1.6% | -$5.08 | 
| 2010 | $15.38 | +1.8% | $20.38 | 
+1.8% | -$5.00 | 
| 2009 | $15.22 | +1.1% | $20.16 | 
+1.1% | -$4.94 | 
| 2008 | $14.77 | +3.1% | $19.56 | 
+3.1% | -$4.79 | 
| 2007 | $14.27 | +3.5% | $18.91 | 
+3.5% | -$4.63 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $17.29 |   | $20.85 | 
  | -$3.56 | 
| 2015 | $16.85 | +2.6% | $20.27 | 
+2.9% | -$3.41 | 
| 2014 | $16.54 | +1.9% | $19.83 | 
+2.2% | -$3.29 | 
| 2013 | $16.22 | +1.9% | $19.43 | 
+2.1% | -$3.21 | 
| 2012 | $15.90 | +2.0% | $19.10 | 
+1.7% | -$3.19 | 
| 2011 | $15.66 | +1.6% | $18.80 | 
+1.6% | -$3.14 | 
| 2010 | $15.38 | +1.8% | $18.48 | 
+1.7% | -$3.10 | 
| 2009 | $15.22 | +1.1% | $18.23 | 
+1.4% | -$3.01 | 
| 2008 | $14.77 | +3.1% | $17.77 | 
+2.6% | -$3.00 | 
| 2007 | $14.27 | +3.5% | $17.20 | 
+3.3% | -$2.92 | 
  | 
| Reference Date: 1st Quarter 2016 |