  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $9.71 |   | $11.41 | 
  | -$1.70 | 
| 2015 | $9.45 | +2.7% | $11.11 | 
+2.7% | -$1.65 | 
| 2014 | $9.26 | +2.0% | $10.89 | 
+2.0% | -$1.62 | 
| 2013 | $9.15 | +1.3% | $10.75 | 
+1.3% | -$1.60 | 
| 2012 | $9.01 | +1.5% | $10.59 | 
+1.5% | -$1.57 | 
| 2011 | $8.89 | +1.4% | $10.44 | 
+1.4% | -$1.55 | 
| 2010 | $8.79 | +1.1% | $10.33 | 
+1.1% | -$1.53 | 
| 2009 | $8.62 | +2.0% | $10.13 | 
+2.0% | -$1.50 | 
| 2008 | $8.39 | +2.8% | $9.85 | 
+2.8% | -$1.46 | 
| 2007 | $8.06 | +4.1% | $9.47 | 
+4.1% | -$1.41 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $9.71 |   | $20.53 | 
  | -$10.82 | 
| 2015 | $9.45 | +2.7% | $19.96 | 
+2.9% | -$10.50 | 
| 2014 | $9.26 | +2.0% | $19.53 | 
+2.2% | -$10.26 | 
| 2013 | $9.15 | +1.3% | $19.14 | 
+2.1% | -$9.98 | 
| 2012 | $9.01 | +1.5% | $18.81 | 
+1.7% | -$9.79 | 
| 2011 | $8.89 | +1.4% | $18.51 | 
+1.6% | -$9.62 | 
| 2010 | $8.79 | +1.1% | $18.20 | 
+1.7% | -$9.40 | 
| 2009 | $8.62 | +2.0% | $17.95 | 
+1.4% | -$9.33 | 
| 2008 | $8.39 | +2.8% | $17.49 | 
+2.6% | -$9.10 | 
| 2007 | $8.06 | +4.1% | $16.94 | 
+3.3% | -$8.87 | 
  | 
| Reference Date: 1st Quarter 2016 |