  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $12.40 |   | $10.64 | 
  | $1.76 | 
| 2015 | $12.07 | +2.7% | $10.36 | 
+2.7% | $1.71 | 
| 2014 | $11.83 | +2.0% | $10.15 | 
+2.0% | $1.68 | 
| 2013 | $11.68 | +1.3% | $10.02 | 
+1.3% | $1.66 | 
| 2012 | $11.51 | +1.5% | $9.88 | 
+1.5% | $1.63 | 
| 2011 | $11.35 | +1.4% | $9.74 | 
+1.4% | $1.61 | 
| 2010 | $11.23 | +1.1% | $9.64 | 
+1.1% | $1.59 | 
| 2009 | $11.01 | +2.0% | $9.45 | 
+2.0% | $1.56 | 
| 2008 | $10.71 | +2.8% | $9.19 | 
+2.8% | $1.52 | 
| 2007 | $10.29 | +4.1% | $8.83 | 
+4.1% | $1.46 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $12.40 |   | $20.85 | 
  | -$8.45 | 
| 2015 | $12.07 | +2.7% | $20.27 | 
+2.9% | -$8.19 | 
| 2014 | $11.83 | +2.0% | $19.83 | 
+2.2% | -$8.00 | 
| 2013 | $11.68 | +1.3% | $19.43 | 
+2.1% | -$7.75 | 
| 2012 | $11.51 | +1.5% | $19.10 | 
+1.7% | -$7.59 | 
| 2011 | $11.35 | +1.4% | $18.80 | 
+1.6% | -$7.45 | 
| 2010 | $11.23 | +1.1% | $18.48 | 
+1.7% | -$7.25 | 
| 2009 | $11.01 | +2.0% | $18.23 | 
+1.4% | -$7.22 | 
| 2008 | $10.71 | +2.8% | $17.77 | 
+2.6% | -$7.05 | 
| 2007 | $10.29 | +4.1% | $17.20 | 
+3.3% | -$6.91 | 
  | 
| Reference Date: 1st Quarter 2016 |