  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $29.03 |   | $17.54 | 
  | $11.49 | 
| 2015 | $28.11 | +3.3% | $16.98 | 
+3.3% | $11.13 | 
| 2014 | $27.47 | +2.3% | $16.60 | 
+2.3% | $10.87 | 
| 2013 | $26.95 | +1.9% | $16.29 | 
+1.9% | $10.67 | 
| 2012 | $26.50 | +1.7% | $16.01 | 
+1.7% | $10.49 | 
| 2011 | $26.08 | +1.6% | $15.76 | 
+1.6% | $10.32 | 
| 2010 | $25.80 | +1.1% | $15.59 | 
+1.1% | $10.21 | 
| 2009 | $25.35 | +1.8% | $15.32 | 
+1.8% | $10.03 | 
| 2008 | $24.69 | +2.7% | $14.92 | 
+2.7% | $9.77 | 
| 2007 | $24.12 | +2.3% | $14.57 | 
+2.3% | $9.55 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $29.03 |   | $19.32 | 
  | $9.71 | 
| 2015 | $28.11 | +3.3% | $18.78 | 
+2.9% | $9.33 | 
| 2014 | $27.47 | +2.3% | $18.38 | 
+2.2% | $9.09 | 
| 2013 | $26.95 | +1.9% | $18.01 | 
+2.1% | $8.95 | 
| 2012 | $26.50 | +1.7% | $17.70 | 
+1.7% | $8.81 | 
| 2011 | $26.08 | +1.6% | $17.42 | 
+1.6% | $8.66 | 
| 2010 | $25.80 | +1.1% | $17.13 | 
+1.7% | $8.67 | 
| 2009 | $25.35 | +1.8% | $16.90 | 
+1.4% | $8.45 | 
| 2008 | $24.69 | +2.7% | $16.46 | 
+2.6% | $8.22 | 
| 2007 | $24.12 | +2.3% | $15.94 | 
+3.3% | $8.18 | 
  | 
| Reference Date: 1st Quarter 2016 |