  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $30.66 |   | $27.07 | 
  | $3.59 | 
| 2015 | $29.94 | +2.4% | $26.44 | 
+2.4% | $3.51 | 
| 2014 | $29.30 | +2.2% | $25.87 | 
+2.2% | $3.43 | 
| 2013 | $28.86 | +1.5% | $25.48 | 
+1.5% | $3.38 | 
| 2012 | $28.61 | +.9% | $25.26 | 
+.9% | $3.35 | 
| 2011 | $28.19 | +1.5% | $24.89 | 
+1.5% | $3.30 | 
| 2010 | $27.87 | +1.2% | $24.60 | 
+1.2% | $3.26 | 
| 2009 | $27.57 | +1.1% | $24.34 | 
+1.1% | $3.23 | 
| 2008 | $26.65 | +3.4% | $23.53 | 
+3.4% | $3.12 | 
| 2007 | $25.64 | +4.0% | $22.64 | 
+4.0% | $3.00 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $30.66 |   | $20.85 | 
  | $9.81 | 
| 2015 | $29.94 | +2.4% | $20.27 | 
+2.9% | $9.68 | 
| 2014 | $29.30 | +2.2% | $19.83 | 
+2.2% | $9.47 | 
| 2013 | $28.86 | +1.5% | $19.43 | 
+2.1% | $9.42 | 
| 2012 | $28.61 | +.9% | $19.10 | 
+1.7% | $9.51 | 
| 2011 | $28.19 | +1.5% | $18.80 | 
+1.6% | $9.39 | 
| 2010 | $27.87 | +1.2% | $18.48 | 
+1.7% | $9.38 | 
| 2009 | $27.57 | +1.1% | $18.23 | 
+1.4% | $9.34 | 
| 2008 | $26.65 | +3.4% | $17.77 | 
+2.6% | $8.89 | 
| 2007 | $25.64 | +4.0% | $17.20 | 
+3.3% | $8.44 | 
  | 
| Reference Date: 1st Quarter 2016 |