  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $38.64 |   | $35.50 | 
  | $3.14 | 
| 2015 | $37.66 | +2.6% | $34.60 | 
+2.6% | $3.06 | 
| 2014 | $36.95 | +1.9% | $33.95 | 
+1.9% | $3.00 | 
| 2013 | $36.25 | +1.9% | $33.30 | 
+1.9% | $2.95 | 
| 2012 | $35.54 | +2.0% | $32.65 | 
+2.0% | $2.89 | 
| 2011 | $34.99 | +1.6% | $32.15 | 
+1.6% | $2.84 | 
| 2010 | $34.38 | +1.8% | $31.58 | 
+1.8% | $2.79 | 
| 2009 | $34.01 | +1.1% | $31.25 | 
+1.1% | $2.76 | 
| 2008 | $33.00 | +3.1% | $30.32 | 
+3.1% | $2.68 | 
| 2007 | $31.89 | +3.5% | $29.30 | 
+3.5% | $2.59 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $38.64 |   | $20.85 | 
  | $17.79 | 
| 2015 | $37.66 | +2.6% | $20.27 | 
+2.9% | $17.39 | 
| 2014 | $36.95 | +1.9% | $19.83 | 
+2.2% | $17.12 | 
| 2013 | $36.25 | +1.9% | $19.43 | 
+2.1% | $16.81 | 
| 2012 | $35.54 | +2.0% | $19.10 | 
+1.7% | $16.44 | 
| 2011 | $34.99 | +1.6% | $18.80 | 
+1.6% | $16.19 | 
| 2010 | $34.38 | +1.8% | $18.48 | 
+1.7% | $15.89 | 
| 2009 | $34.01 | +1.1% | $18.23 | 
+1.4% | $15.78 | 
| 2008 | $33.00 | +3.1% | $17.77 | 
+2.6% | $15.23 | 
| 2007 | $31.89 | +3.5% | $17.20 | 
+3.3% | $14.69 | 
  | 
| Reference Date: 1st Quarter 2016 |