  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $9.53 |   | $10.10 | 
  | -$0.57 | 
| 2015 | $9.28 | +2.7% | $9.83 | 
+2.7% | -$0.55 | 
| 2014 | $9.09 | +2.0% | $9.64 | 
+2.0% | -$0.54 | 
| 2013 | $8.98 | +1.3% | $9.51 | 
+1.3% | -$0.53 | 
| 2012 | $8.85 | +1.5% | $9.38 | 
+1.5% | -$0.52 | 
| 2011 | $8.72 | +1.4% | $9.24 | 
+1.4% | -$0.52 | 
| 2010 | $8.63 | +1.1% | $9.15 | 
+1.1% | -$0.51 | 
| 2009 | $8.46 | +2.0% | $8.97 | 
+2.0% | -$0.50 | 
| 2008 | $8.23 | +2.8% | $8.72 | 
+2.8% | -$0.49 | 
| 2007 | $7.91 | +4.1% | $8.38 | 
+4.1% | -$0.47 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $9.53 |   | $18.42 | 
  | -$8.89 | 
| 2015 | $9.28 | +2.7% | $17.90 | 
+2.9% | -$8.62 | 
| 2014 | $9.09 | +2.0% | $17.52 | 
+2.2% | -$8.42 | 
| 2013 | $8.98 | +1.3% | $17.17 | 
+2.1% | -$8.19 | 
| 2012 | $8.85 | +1.5% | $16.87 | 
+1.7% | -$8.02 | 
| 2011 | $8.72 | +1.4% | $16.61 | 
+1.6% | -$7.88 | 
| 2010 | $8.63 | +1.1% | $16.33 | 
+1.7% | -$7.69 | 
| 2009 | $8.46 | +2.0% | $16.11 | 
+1.4% | -$7.64 | 
| 2008 | $8.23 | +2.8% | $15.70 | 
+2.6% | -$7.46 | 
| 2007 | $7.91 | +4.1% | $15.20 | 
+3.3% | -$7.28 | 
  | 
| Reference Date: 1st Quarter 2016 |