  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $17.60 |   | $12.61 | 
  | $4.99 | 
| 2015 | $17.13 | +2.7% | $12.27 | 
+2.7% | $4.86 | 
| 2014 | $16.79 | +2.0% | $12.03 | 
+2.0% | $4.76 | 
| 2013 | $16.58 | +1.3% | $11.88 | 
+1.3% | $4.70 | 
| 2012 | $16.34 | +1.5% | $11.70 | 
+1.5% | $4.63 | 
| 2011 | $16.11 | +1.4% | $11.54 | 
+1.4% | $4.57 | 
| 2010 | $15.94 | +1.1% | $11.42 | 
+1.1% | $4.52 | 
| 2009 | $15.63 | +2.0% | $11.20 | 
+2.0% | $4.43 | 
| 2008 | $15.20 | +2.8% | $10.89 | 
+2.8% | $4.31 | 
| 2007 | $14.61 | +4.1% | $10.46 | 
+4.1% | $4.14 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $17.60 |   | $20.85 | 
  | -$3.25 | 
| 2015 | $17.13 | +2.7% | $20.27 | 
+2.9% | -$3.13 | 
| 2014 | $16.79 | +2.0% | $19.83 | 
+2.2% | -$3.04 | 
| 2013 | $16.58 | +1.3% | $19.43 | 
+2.1% | -$2.85 | 
| 2012 | $16.34 | +1.5% | $19.10 | 
+1.7% | -$2.76 | 
| 2011 | $16.11 | +1.4% | $18.80 | 
+1.6% | -$2.69 | 
| 2010 | $15.94 | +1.1% | $18.48 | 
+1.7% | -$2.54 | 
| 2009 | $15.63 | +2.0% | $18.23 | 
+1.4% | -$2.60 | 
| 2008 | $15.20 | +2.8% | $17.77 | 
+2.6% | -$2.56 | 
| 2007 | $14.61 | +4.1% | $17.20 | 
+3.3% | -$2.59 | 
  | 
| Reference Date: 1st Quarter 2016 |