  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $30.68 |   | $26.04 | 
  | $4.64 | 
| 2015 | $29.86 | +2.7% | $25.35 | 
+2.7% | $4.52 | 
| 2014 | $29.27 | +2.0% | $24.84 | 
+2.0% | $4.43 | 
| 2013 | $28.90 | +1.3% | $24.53 | 
+1.3% | $4.37 | 
| 2012 | $28.48 | +1.5% | $24.17 | 
+1.5% | $4.31 | 
| 2011 | $28.08 | +1.4% | $23.84 | 
+1.4% | $4.25 | 
| 2010 | $27.79 | +1.1% | $23.58 | 
+1.1% | $4.20 | 
| 2009 | $27.24 | +2.0% | $23.12 | 
+2.0% | $4.12 | 
| 2008 | $26.50 | +2.8% | $22.49 | 
+2.8% | $4.01 | 
| 2007 | $25.46 | +4.1% | $21.61 | 
+4.1% | $3.85 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $30.68 |   | $18.24 | 
  | $12.44 | 
| 2015 | $29.86 | +2.7% | $17.73 | 
+2.9% | $12.13 | 
| 2014 | $29.27 | +2.0% | $17.35 | 
+2.2% | $11.92 | 
| 2013 | $28.90 | +1.3% | $17.00 | 
+2.1% | $11.90 | 
| 2012 | $28.48 | +1.5% | $16.71 | 
+1.7% | $11.77 | 
| 2011 | $28.08 | +1.4% | $16.45 | 
+1.6% | $11.64 | 
| 2010 | $27.79 | +1.1% | $16.17 | 
+1.7% | $11.62 | 
| 2009 | $27.24 | +2.0% | $15.95 | 
+1.4% | $11.29 | 
| 2008 | $26.50 | +2.8% | $15.54 | 
+2.6% | $10.96 | 
| 2007 | $25.46 | +4.1% | $15.05 | 
+3.3% | $10.41 | 
  | 
| Reference Date: 1st Quarter 2016 |