  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $30.73 |   | $38.35 | 
  | -$7.62 | 
| 2015 | $29.95 | +2.6% | $37.38 | 
+2.6% | -$7.42 | 
| 2014 | $29.39 | +1.9% | $36.68 | 
+1.9% | -$7.28 | 
| 2013 | $28.83 | +1.9% | $35.98 | 
+1.9% | -$7.14 | 
| 2012 | $28.27 | +2.0% | $35.28 | 
+2.0% | -$7.00 | 
| 2011 | $27.83 | +1.6% | $34.73 | 
+1.6% | -$6.90 | 
| 2010 | $27.34 | +1.8% | $34.12 | 
+1.8% | -$6.77 | 
| 2009 | $27.05 | +1.1% | $33.75 | 
+1.1% | -$6.70 | 
| 2008 | $26.24 | +3.1% | $32.75 | 
+3.1% | -$6.50 | 
| 2007 | $25.36 | +3.5% | $31.65 | 
+3.5% | -$6.28 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $30.73 |   | $20.85 | 
  | $9.88 | 
| 2015 | $29.95 | +2.6% | $20.27 | 
+2.9% | $9.68 | 
| 2014 | $29.39 | +1.9% | $19.83 | 
+2.2% | $9.56 | 
| 2013 | $28.83 | +1.9% | $19.43 | 
+2.1% | $9.39 | 
| 2012 | $28.27 | +2.0% | $19.10 | 
+1.7% | $9.17 | 
| 2011 | $27.83 | +1.6% | $18.80 | 
+1.6% | $9.03 | 
| 2010 | $27.34 | +1.8% | $18.48 | 
+1.7% | $8.86 | 
| 2009 | $27.05 | +1.1% | $18.23 | 
+1.4% | $8.81 | 
| 2008 | $26.24 | +3.1% | $17.77 | 
+2.6% | $8.48 | 
| 2007 | $25.36 | +3.5% | $17.20 | 
+3.3% | $8.16 | 
  | 
| Reference Date: 1st Quarter 2016 |