  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $27.23 |   | $20.05 | 
  | $7.18 | 
| 2015 | $26.24 | +3.8% | $19.32 | 
+3.8% | $6.92 | 
| 2014 | $25.73 | +2.0% | $18.95 | 
+2.0% | $6.78 | 
| 2013 | $25.22 | +2.0% | $18.57 | 
+2.0% | $6.65 | 
| 2012 | $24.79 | +1.7% | $18.25 | 
+1.7% | $6.54 | 
| 2011 | $24.34 | +1.8% | $17.92 | 
+1.8% | $6.42 | 
| 2010 | $23.95 | +1.6% | $17.64 | 
+1.6% | $6.32 | 
| 2009 | $23.50 | +1.9% | $17.31 | 
+1.9% | $6.20 | 
| 2008 | $22.86 | +2.8% | $16.83 | 
+2.8% | $6.03 | 
| 2007 | $22.13 | +3.3% | $16.30 | 
+3.3% | $5.84 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $27.23 |   | $23.35 | 
  | $3.88 | 
| 2015 | $26.24 | +3.8% | $22.70 | 
+2.9% | $3.55 | 
| 2014 | $25.73 | +2.0% | $22.21 | 
+2.2% | $3.52 | 
| 2013 | $25.22 | +2.0% | $21.76 | 
+2.1% | $3.45 | 
| 2012 | $24.79 | +1.7% | $21.39 | 
+1.7% | $3.40 | 
| 2011 | $24.34 | +1.8% | $21.05 | 
+1.6% | $3.28 | 
| 2010 | $23.95 | +1.6% | $20.70 | 
+1.7% | $3.25 | 
| 2009 | $23.50 | +1.9% | $20.42 | 
+1.4% | $3.08 | 
| 2008 | $22.86 | +2.8% | $19.90 | 
+2.6% | $2.96 | 
| 2007 | $22.13 | +3.3% | $19.26 | 
+3.3% | $2.87 | 
  | 
| Reference Date: 1st Quarter 2016 |