  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $35.12 |   | $39.37 | 
  | -$4.25 | 
| 2015 | $34.23 | +2.6% | $38.37 | 
+2.6% | -$4.14 | 
| 2014 | $33.59 | +1.9% | $37.65 | 
+1.9% | -$4.06 | 
| 2013 | $32.95 | +1.9% | $36.93 | 
+1.9% | -$3.98 | 
| 2012 | $32.30 | +2.0% | $36.21 | 
+2.0% | -$3.90 | 
| 2011 | $31.80 | +1.6% | $35.65 | 
+1.6% | -$3.84 | 
| 2010 | $31.25 | +1.8% | $35.03 | 
+1.8% | -$3.78 | 
| 2009 | $30.91 | +1.1% | $34.65 | 
+1.1% | -$3.74 | 
| 2008 | $29.99 | +3.1% | $33.62 | 
+3.1% | -$3.62 | 
| 2007 | $28.99 | +3.5% | $32.50 | 
+3.5% | -$3.50 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $35.12 |   | $19.32 | 
  | $15.80 | 
| 2015 | $34.23 | +2.6% | $18.78 | 
+2.9% | $15.45 | 
| 2014 | $33.59 | +1.9% | $18.38 | 
+2.2% | $15.21 | 
| 2013 | $32.95 | +1.9% | $18.01 | 
+2.1% | $14.94 | 
| 2012 | $32.30 | +2.0% | $17.70 | 
+1.7% | $14.61 | 
| 2011 | $31.80 | +1.6% | $17.42 | 
+1.6% | $14.38 | 
| 2010 | $31.25 | +1.8% | $17.13 | 
+1.7% | $14.12 | 
| 2009 | $30.91 | +1.1% | $16.90 | 
+1.4% | $14.02 | 
| 2008 | $29.99 | +3.1% | $16.46 | 
+2.6% | $13.53 | 
| 2007 | $28.99 | +3.5% | $15.94 | 
+3.3% | $13.05 | 
  | 
| Reference Date: 1st Quarter 2016 |