  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $13.77 |   | $15.98 | 
  | -$2.21 | 
| 2015 | $13.31 | +3.5% | $15.44 | 
+3.5% | -$2.13 | 
| 2014 | $13.01 | +2.3% | $15.10 | 
+2.3% | -$2.08 | 
| 2013 | $12.80 | +1.6% | $14.86 | 
+1.6% | -$2.05 | 
| 2012 | $12.50 | +2.4% | $14.51 | 
+2.4% | -$2.00 | 
| 2011 | $12.35 | +1.2% | $14.33 | 
+1.2% | -$1.98 | 
| 2010 | $12.12 | +1.9% | $14.06 | 
+1.9% | -$1.94 | 
| 2009 | $11.92 | +1.7% | $13.83 | 
+1.7% | -$1.91 | 
| 2008 | $11.60 | +2.8% | $13.46 | 
+2.8% | -$1.86 | 
| 2007 | $11.29 | +2.7% | $13.11 | 
+2.7% | -$1.81 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $13.77 |   | $21.85 | 
  | -$8.08 | 
| 2015 | $13.31 | +3.5% | $21.24 | 
+2.9% | -$7.93 | 
| 2014 | $13.01 | +2.3% | $20.78 | 
+2.2% | -$7.77 | 
| 2013 | $12.80 | +1.6% | $20.37 | 
+2.1% | -$7.56 | 
| 2012 | $12.50 | +2.4% | $20.02 | 
+1.7% | -$7.51 | 
| 2011 | $12.35 | +1.2% | $19.70 | 
+1.6% | -$7.35 | 
| 2010 | $12.12 | +1.9% | $19.37 | 
+1.7% | -$7.25 | 
| 2009 | $11.92 | +1.7% | $19.11 | 
+1.4% | -$7.18 | 
| 2008 | $11.60 | +2.8% | $18.62 | 
+2.6% | -$7.01 | 
| 2007 | $11.29 | +2.7% | $18.02 | 
+3.3% | -$6.73 | 
  | 
| Reference Date: 1st Quarter 2016 |