  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $25.61 |   | $41.11 | 
  | -$15.50 | 
| 2015 | $24.96 | +2.6% | $40.07 | 
+2.6% | -$15.10 | 
| 2014 | $24.49 | +1.9% | $39.32 | 
+1.9% | -$14.82 | 
| 2013 | $24.02 | +1.9% | $38.57 | 
+1.9% | -$14.54 | 
| 2012 | $23.56 | +2.0% | $37.81 | 
+2.0% | -$14.25 | 
| 2011 | $23.19 | +1.6% | $37.23 | 
+1.6% | -$14.03 | 
| 2010 | $22.78 | +1.8% | $36.57 | 
+1.8% | -$13.79 | 
| 2009 | $22.54 | +1.1% | $36.18 | 
+1.1% | -$13.64 | 
| 2008 | $21.87 | +3.1% | $35.11 | 
+3.1% | -$13.23 | 
| 2007 | $21.14 | +3.5% | $33.93 | 
+3.5% | -$12.79 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $25.61 |   | $20.85 | 
  | $4.76 | 
| 2015 | $24.96 | +2.6% | $20.27 | 
+2.9% | $4.69 | 
| 2014 | $24.49 | +1.9% | $19.83 | 
+2.2% | $4.66 | 
| 2013 | $24.02 | +1.9% | $19.43 | 
+2.1% | $4.59 | 
| 2012 | $23.56 | +2.0% | $19.10 | 
+1.7% | $4.46 | 
| 2011 | $23.19 | +1.6% | $18.80 | 
+1.6% | $4.39 | 
| 2010 | $22.78 | +1.8% | $18.48 | 
+1.7% | $4.30 | 
| 2009 | $22.54 | +1.1% | $18.23 | 
+1.4% | $4.31 | 
| 2008 | $21.87 | +3.1% | $17.77 | 
+2.6% | $4.10 | 
| 2007 | $21.14 | +3.5% | $17.20 | 
+3.3% | $3.94 | 
  | 
| Reference Date: 1st Quarter 2016 |