  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $29.17 |   | $39.88 | 
  | -$10.71 | 
| 2015 | $28.43 | +2.6% | $38.87 | 
+2.6% | -$10.43 | 
| 2014 | $27.90 | +1.9% | $38.14 | 
+1.9% | -$10.24 | 
| 2013 | $27.36 | +1.9% | $37.41 | 
+1.9% | -$10.04 | 
| 2012 | $26.83 | +2.0% | $36.68 | 
+2.0% | -$9.85 | 
| 2011 | $26.42 | +1.6% | $36.11 | 
+1.6% | -$9.69 | 
| 2010 | $25.95 | +1.8% | $35.48 | 
+1.8% | -$9.52 | 
| 2009 | $25.67 | +1.1% | $35.10 | 
+1.1% | -$9.42 | 
| 2008 | $24.91 | +3.1% | $34.06 | 
+3.1% | -$9.14 | 
| 2007 | $24.08 | +3.5% | $32.92 | 
+3.5% | -$8.84 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $29.17 |   | $23.35 | 
  | $5.82 | 
| 2015 | $28.43 | +2.6% | $22.70 | 
+2.9% | $5.73 | 
| 2014 | $27.90 | +1.9% | $22.21 | 
+2.2% | $5.69 | 
| 2013 | $27.36 | +1.9% | $21.76 | 
+2.1% | $5.60 | 
| 2012 | $26.83 | +2.0% | $21.39 | 
+1.7% | $5.44 | 
| 2011 | $26.42 | +1.6% | $21.05 | 
+1.6% | $5.36 | 
| 2010 | $25.95 | +1.8% | $20.70 | 
+1.7% | $5.25 | 
| 2009 | $25.67 | +1.1% | $20.42 | 
+1.4% | $5.25 | 
| 2008 | $24.91 | +3.1% | $19.90 | 
+2.6% | $5.01 | 
| 2007 | $24.08 | +3.5% | $19.26 | 
+3.3% | $4.81 | 
  | 
| Reference Date: 1st Quarter 2016 |