  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $26.72 |   | $18.23 | 
  | $8.49 | 
| 2015 | $25.75 | +3.8% | $17.57 | 
+3.8% | $8.18 | 
| 2014 | $25.25 | +2.0% | $17.23 | 
+2.0% | $8.02 | 
| 2013 | $24.74 | +2.0% | $16.88 | 
+2.0% | $7.86 | 
| 2012 | $24.32 | +1.7% | $16.59 | 
+1.7% | $7.73 | 
| 2011 | $23.88 | +1.8% | $16.29 | 
+1.8% | $7.59 | 
| 2010 | $23.50 | +1.6% | $16.04 | 
+1.6% | $7.47 | 
| 2009 | $23.06 | +1.9% | $15.73 | 
+1.9% | $7.33 | 
| 2008 | $22.43 | +2.8% | $15.30 | 
+2.8% | $7.13 | 
| 2007 | $21.72 | +3.3% | $14.82 | 
+3.3% | $6.90 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $26.72 |   | $19.32 | 
  | $7.40 | 
| 2015 | $25.75 | +3.8% | $18.78 | 
+2.9% | $6.97 | 
| 2014 | $25.25 | +2.0% | $18.38 | 
+2.2% | $6.87 | 
| 2013 | $24.74 | +2.0% | $18.01 | 
+2.1% | $6.74 | 
| 2012 | $24.32 | +1.7% | $17.70 | 
+1.7% | $6.62 | 
| 2011 | $23.88 | +1.8% | $17.42 | 
+1.6% | $6.46 | 
| 2010 | $23.50 | +1.6% | $17.13 | 
+1.7% | $6.38 | 
| 2009 | $23.06 | +1.9% | $16.90 | 
+1.4% | $6.17 | 
| 2008 | $22.43 | +2.8% | $16.46 | 
+2.6% | $5.97 | 
| 2007 | $21.72 | +3.3% | $15.94 | 
+3.3% | $5.78 | 
  | 
| Reference Date: 1st Quarter 2016 |