|  | 
| Mean Wage History | 
| Year | This Occupation
 | Compared to Occupational Group
 | Difference | 
| Current | $20.49 |  | $18.75 |  | $1.74 | 
| 2015 | $19.75 | +3.8% | $18.07 | +3.8% | $1.68 | 
| 2014 | $19.36 | +2.0% | $17.72 | +2.0% | $1.64 | 
| 2013 | $18.97 | +2.0% | $17.36 | +2.0% | $1.61 | 
| 2012 | $18.65 | +1.7% | $17.07 | +1.7% | $1.58 | 
| 2011 | $18.31 | +1.8% | $16.76 | +1.8% | $1.56 | 
| 2010 | $18.02 | +1.6% | $16.49 | +1.6% | $1.53 | 
| 2009 | $17.68 | +1.9% | $16.18 | +1.9% | $1.50 | 
| 2008 | $17.20 | +2.8% | $15.74 | +2.8% | $1.46 | 
| 2007 | $16.65 | +3.3% | $15.24 | +3.3% | $1.41 | 
| Year | This Occupation
 | Compared to All Occupations
 | Difference | 
| Current | $20.49 |  | $19.47 |  | $1.02 | 
| 2015 | $19.75 | +3.8% | $18.93 | +2.9% | $0.82 | 
| 2014 | $19.36 | +2.0% | $18.52 | +2.2% | $0.84 | 
| 2013 | $18.97 | +2.0% | $18.15 | +2.1% | $0.83 | 
| 2012 | $18.65 | +1.7% | $17.84 | +1.7% | $0.82 | 
| 2011 | $18.31 | +1.8% | $17.56 | +1.6% | $0.76 | 
| 2010 | $18.02 | +1.6% | $17.26 | +1.7% | $0.76 | 
| 2009 | $17.68 | +1.9% | $17.03 | +1.4% | $0.66 | 
| 2008 | $17.20 | +2.8% | $16.59 | +2.6% | $0.61 | 
| 2007 | $16.65 | +3.3% | $16.06 | +3.3% | $0.59 | 
|  | 
|
| Reference Date: 1st Quarter 2016 |