  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $14.84 |   | $19.17 | 
  | -$4.33 | 
| 2015 | $14.37 | +3.3% | $18.56 | 
+3.3% | -$4.19 | 
| 2014 | $14.04 | +2.3% | $18.14 | 
+2.3% | -$4.09 | 
| 2013 | $13.78 | +1.9% | $17.80 | 
+1.9% | -$4.02 | 
| 2012 | $13.55 | +1.7% | $17.50 | 
+1.7% | -$3.95 | 
| 2011 | $13.33 | +1.6% | $17.22 | 
+1.6% | -$3.88 | 
| 2010 | $13.19 | +1.1% | $17.03 | 
+1.1% | -$3.84 | 
| 2009 | $12.96 | +1.8% | $16.74 | 
+1.8% | -$3.78 | 
| 2008 | $12.62 | +2.7% | $16.30 | 
+2.7% | -$3.68 | 
| 2007 | $12.33 | +2.3% | $15.93 | 
+2.3% | -$3.59 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $14.84 |   | $23.35 | 
  | -$8.51 | 
| 2015 | $14.37 | +3.3% | $22.70 | 
+2.9% | -$8.32 | 
| 2014 | $14.04 | +2.3% | $22.21 | 
+2.2% | -$8.16 | 
| 2013 | $13.78 | +1.9% | $21.76 | 
+2.1% | -$7.98 | 
| 2012 | $13.55 | +1.7% | $21.39 | 
+1.7% | -$7.84 | 
| 2011 | $13.33 | +1.6% | $21.05 | 
+1.6% | -$7.72 | 
| 2010 | $13.19 | +1.1% | $20.70 | 
+1.7% | -$7.51 | 
| 2009 | $12.96 | +1.8% | $20.42 | 
+1.4% | -$7.46 | 
| 2008 | $12.62 | +2.7% | $19.90 | 
+2.6% | -$7.27 | 
| 2007 | $12.33 | +2.3% | $19.26 | 
+3.3% | -$6.93 | 
  | 
| Reference Date: 1st Quarter 2016 |