  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $12.24 |   | $19.17 | 
  | -$6.93 | 
| 2015 | $11.85 | +3.3% | $18.56 | 
+3.3% | -$6.71 | 
| 2014 | $11.58 | +2.3% | $18.14 | 
+2.3% | -$6.55 | 
| 2013 | $11.36 | +1.9% | $17.80 | 
+1.9% | -$6.43 | 
| 2012 | $11.18 | +1.7% | $17.50 | 
+1.7% | -$6.32 | 
| 2011 | $11.00 | +1.6% | $17.22 | 
+1.6% | -$6.22 | 
| 2010 | $10.88 | +1.1% | $17.03 | 
+1.1% | -$6.15 | 
| 2009 | $10.69 | +1.8% | $16.74 | 
+1.8% | -$6.05 | 
| 2008 | $10.41 | +2.7% | $16.30 | 
+2.7% | -$5.89 | 
| 2007 | $10.17 | +2.3% | $15.93 | 
+2.3% | -$5.75 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $12.24 |   | $23.35 | 
  | -$11.11 | 
| 2015 | $11.85 | +3.3% | $22.70 | 
+2.9% | -$10.84 | 
| 2014 | $11.58 | +2.3% | $22.21 | 
+2.2% | -$10.62 | 
| 2013 | $11.36 | +1.9% | $21.76 | 
+2.1% | -$10.39 | 
| 2012 | $11.18 | +1.7% | $21.39 | 
+1.7% | -$10.21 | 
| 2011 | $11.00 | +1.6% | $21.05 | 
+1.6% | -$10.05 | 
| 2010 | $10.88 | +1.1% | $20.70 | 
+1.7% | -$9.82 | 
| 2009 | $10.69 | +1.8% | $20.42 | 
+1.4% | -$9.73 | 
| 2008 | $10.41 | +2.7% | $19.90 | 
+2.6% | -$9.48 | 
| 2007 | $10.17 | +2.3% | $19.26 | 
+3.3% | -$9.09 | 
  | 
| Reference Date: 1st Quarter 2016 |