  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $10.96 |   | $17.54 | 
  | -$6.58 | 
| 2015 | $10.61 | +3.3% | $16.98 | 
+3.3% | -$6.37 | 
| 2014 | $10.37 | +2.3% | $16.60 | 
+2.3% | -$6.22 | 
| 2013 | $10.18 | +1.9% | $16.29 | 
+1.9% | -$6.10 | 
| 2012 | $10.01 | +1.7% | $16.01 | 
+1.7% | -$6.00 | 
| 2011 | $9.85 | +1.6% | $15.76 | 
+1.6% | -$5.91 | 
| 2010 | $9.74 | +1.1% | $15.59 | 
+1.1% | -$5.84 | 
| 2009 | $9.57 | +1.8% | $15.32 | 
+1.8% | -$5.74 | 
| 2008 | $9.32 | +2.7% | $14.92 | 
+2.7% | -$5.59 | 
| 2007 | $9.11 | +2.3% | $14.57 | 
+2.3% | -$5.46 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $10.96 |   | $19.32 | 
  | -$8.36 | 
| 2015 | $10.61 | +3.3% | $18.78 | 
+2.9% | -$8.16 | 
| 2014 | $10.37 | +2.3% | $18.38 | 
+2.2% | -$8.00 | 
| 2013 | $10.18 | +1.9% | $18.01 | 
+2.1% | -$7.83 | 
| 2012 | $10.01 | +1.7% | $17.70 | 
+1.7% | -$7.69 | 
| 2011 | $9.85 | +1.6% | $17.42 | 
+1.6% | -$7.57 | 
| 2010 | $9.74 | +1.1% | $17.13 | 
+1.7% | -$7.38 | 
| 2009 | $9.57 | +1.8% | $16.90 | 
+1.4% | -$7.32 | 
| 2008 | $9.32 | +2.7% | $16.46 | 
+2.6% | -$7.14 | 
| 2007 | $9.11 | +2.3% | $15.94 | 
+3.3% | -$6.83 | 
  | 
| Reference Date: 1st Quarter 2016 |