  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $29.94 |   | $17.86 | 
  | $12.08 | 
| 2015 | $28.99 | +3.3% | $17.29 | 
+3.3% | $11.70 | 
| 2014 | $28.33 | +2.3% | $16.90 | 
+2.3% | $11.43 | 
| 2013 | $27.80 | +1.9% | $16.58 | 
+1.9% | $11.22 | 
| 2012 | $27.34 | +1.7% | $16.31 | 
+1.7% | $11.03 | 
| 2011 | $26.90 | +1.6% | $16.04 | 
+1.6% | $10.85 | 
| 2010 | $26.61 | +1.1% | $15.87 | 
+1.1% | $10.73 | 
| 2009 | $26.14 | +1.8% | $15.59 | 
+1.8% | $10.55 | 
| 2008 | $25.46 | +2.7% | $15.19 | 
+2.7% | $10.27 | 
| 2007 | $24.88 | +2.3% | $14.84 | 
+2.3% | $10.04 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $29.94 |   | $20.85 | 
  | $9.09 | 
| 2015 | $28.99 | +3.3% | $20.27 | 
+2.9% | $8.72 | 
| 2014 | $28.33 | +2.3% | $19.83 | 
+2.2% | $8.50 | 
| 2013 | $27.80 | +1.9% | $19.43 | 
+2.1% | $8.36 | 
| 2012 | $27.34 | +1.7% | $19.10 | 
+1.7% | $8.24 | 
| 2011 | $26.90 | +1.6% | $18.80 | 
+1.6% | $8.10 | 
| 2010 | $26.61 | +1.1% | $18.48 | 
+1.7% | $8.12 | 
| 2009 | $26.14 | +1.8% | $18.23 | 
+1.4% | $7.91 | 
| 2008 | $25.46 | +2.7% | $17.77 | 
+2.6% | $7.69 | 
| 2007 | $24.88 | +2.3% | $17.20 | 
+3.3% | $7.68 | 
  | 
| Reference Date: 1st Quarter 2016 |