  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $15.49 |   | $17.86 | 
  | -$2.37 | 
| 2015 | $15.00 | +3.3% | $17.29 | 
+3.3% | -$2.29 | 
| 2014 | $14.66 | +2.3% | $16.90 | 
+2.3% | -$2.24 | 
| 2013 | $14.38 | +1.9% | $16.58 | 
+1.9% | -$2.20 | 
| 2012 | $14.14 | +1.7% | $16.31 | 
+1.7% | -$2.16 | 
| 2011 | $13.92 | +1.6% | $16.04 | 
+1.6% | -$2.12 | 
| 2010 | $13.76 | +1.1% | $15.87 | 
+1.1% | -$2.10 | 
| 2009 | $13.53 | +1.8% | $15.59 | 
+1.8% | -$2.06 | 
| 2008 | $13.17 | +2.7% | $15.19 | 
+2.7% | -$2.01 | 
| 2007 | $12.87 | +2.3% | $14.84 | 
+2.3% | -$1.96 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $15.49 |   | $20.85 | 
  | -$5.36 | 
| 2015 | $15.00 | +3.3% | $20.27 | 
+2.9% | -$5.26 | 
| 2014 | $14.66 | +2.3% | $19.83 | 
+2.2% | -$5.17 | 
| 2013 | $14.38 | +1.9% | $19.43 | 
+2.1% | -$5.05 | 
| 2012 | $14.14 | +1.7% | $19.10 | 
+1.7% | -$4.95 | 
| 2011 | $13.92 | +1.6% | $18.80 | 
+1.6% | -$4.88 | 
| 2010 | $13.76 | +1.1% | $18.48 | 
+1.7% | -$4.71 | 
| 2009 | $13.53 | +1.8% | $18.23 | 
+1.4% | -$4.70 | 
| 2008 | $13.17 | +2.7% | $17.77 | 
+2.6% | -$4.59 | 
| 2007 | $12.87 | +2.3% | $17.20 | 
+3.3% | -$4.32 | 
  | 
| Reference Date: 1st Quarter 2016 |