  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $9.67 |   | $13.03 | 
  | -$3.36 | 
| 2015 | $9.41 | +2.7% | $12.68 | 
+2.7% | -$3.27 | 
| 2014 | $9.23 | +2.0% | $12.43 | 
+2.0% | -$3.20 | 
| 2013 | $9.11 | +1.3% | $12.27 | 
+1.3% | -$3.16 | 
| 2012 | $8.98 | +1.5% | $12.09 | 
+1.5% | -$3.11 | 
| 2011 | $8.85 | +1.4% | $11.93 | 
+1.4% | -$3.07 | 
| 2010 | $8.76 | +1.1% | $11.80 | 
+1.1% | -$3.04 | 
| 2009 | $8.59 | +2.0% | $11.57 | 
+2.0% | -$2.98 | 
| 2008 | $8.35 | +2.8% | $11.25 | 
+2.8% | -$2.90 | 
| 2007 | $8.02 | +4.1% | $10.81 | 
+4.1% | -$2.78 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $9.67 |   | $23.35 | 
  | -$13.68 | 
| 2015 | $9.41 | +2.7% | $22.70 | 
+2.9% | -$13.28 | 
| 2014 | $9.23 | +2.0% | $22.21 | 
+2.2% | -$12.98 | 
| 2013 | $9.11 | +1.3% | $21.76 | 
+2.1% | -$12.65 | 
| 2012 | $8.98 | +1.5% | $21.39 | 
+1.7% | -$12.41 | 
| 2011 | $8.85 | +1.4% | $21.05 | 
+1.6% | -$12.20 | 
| 2010 | $8.76 | +1.1% | $20.70 | 
+1.7% | -$11.94 | 
| 2009 | $8.59 | +2.0% | $20.42 | 
+1.4% | -$11.83 | 
| 2008 | $8.35 | +2.8% | $19.90 | 
+2.6% | -$11.54 | 
| 2007 | $8.02 | +4.1% | $19.26 | 
+3.3% | -$11.23 | 
  | 
| Reference Date: 1st Quarter 2016 |