  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $27.32 |   | $15.49 | 
  | $11.83 | 
| 2015 | $26.40 | +3.5% | $14.97 | 
+3.5% | $11.43 | 
| 2014 | $25.81 | +2.3% | $14.64 | 
+2.3% | $11.18 | 
| 2013 | $25.40 | +1.6% | $14.40 | 
+1.6% | $11.00 | 
| 2012 | $24.81 | +2.4% | $14.07 | 
+2.4% | $10.74 | 
| 2011 | $24.50 | +1.2% | $13.89 | 
+1.2% | $10.61 | 
| 2010 | $24.04 | +1.9% | $13.63 | 
+1.9% | $10.41 | 
| 2009 | $23.65 | +1.7% | $13.41 | 
+1.7% | $10.24 | 
| 2008 | $23.02 | +2.8% | $13.05 | 
+2.8% | $9.97 | 
| 2007 | $22.41 | +2.7% | $12.70 | 
+2.7% | $9.70 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $27.32 |   | $22.98 | 
  | $4.34 | 
| 2015 | $26.40 | +3.5% | $22.34 | 
+2.9% | $4.07 | 
| 2014 | $25.81 | +2.3% | $21.86 | 
+2.2% | $3.95 | 
| 2013 | $25.40 | +1.6% | $21.42 | 
+2.1% | $3.98 | 
| 2012 | $24.81 | +2.4% | $21.05 | 
+1.7% | $3.76 | 
| 2011 | $24.50 | +1.2% | $20.72 | 
+1.6% | $3.78 | 
| 2010 | $24.04 | +1.9% | $20.37 | 
+1.7% | $3.67 | 
| 2009 | $23.65 | +1.7% | $20.10 | 
+1.4% | $3.56 | 
| 2008 | $23.02 | +2.8% | $19.58 | 
+2.6% | $3.44 | 
| 2007 | $22.41 | +2.7% | $18.96 | 
+3.3% | $3.45 | 
  | 
| Reference Date: 1st Quarter 2016 |