  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $30.44 |   | $26.57 | 
  | $3.87 | 
| 2015 | $29.63 | +2.7% | $25.86 | 
+2.7% | $3.77 | 
| 2014 | $29.04 | +2.0% | $25.35 | 
+2.0% | $3.69 | 
| 2013 | $28.67 | +1.3% | $25.03 | 
+1.3% | $3.65 | 
| 2012 | $28.26 | +1.5% | $24.66 | 
+1.5% | $3.59 | 
| 2011 | $27.86 | +1.4% | $24.32 | 
+1.4% | $3.54 | 
| 2010 | $27.57 | +1.1% | $24.06 | 
+1.1% | $3.50 | 
| 2009 | $27.03 | +2.0% | $23.59 | 
+2.0% | $3.44 | 
| 2008 | $26.29 | +2.8% | $22.95 | 
+2.8% | $3.34 | 
| 2007 | $25.26 | +4.1% | $22.05 | 
+4.1% | $3.21 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $30.44 |   | $19.32 | 
  | $11.12 | 
| 2015 | $29.63 | +2.7% | $18.78 | 
+2.9% | $10.85 | 
| 2014 | $29.04 | +2.0% | $18.38 | 
+2.2% | $10.66 | 
| 2013 | $28.67 | +1.3% | $18.01 | 
+2.1% | $10.67 | 
| 2012 | $28.26 | +1.5% | $17.70 | 
+1.7% | $10.56 | 
| 2011 | $27.86 | +1.4% | $17.42 | 
+1.6% | $10.44 | 
| 2010 | $27.57 | +1.1% | $17.13 | 
+1.7% | $10.44 | 
| 2009 | $27.03 | +2.0% | $16.90 | 
+1.4% | $10.13 | 
| 2008 | $26.29 | +2.8% | $16.46 | 
+2.6% | $9.83 | 
| 2007 | $25.26 | +4.1% | $15.94 | 
+3.3% | $9.32 | 
  | 
| Reference Date: 1st Quarter 2016 |