  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $14.77 |   | $18.10 | 
  | -$3.33 | 
| 2015 | $14.38 | +2.7% | $17.62 | 
+2.7% | -$3.24 | 
| 2014 | $14.09 | +2.0% | $17.27 | 
+2.0% | -$3.17 | 
| 2013 | $13.91 | +1.3% | $17.05 | 
+1.3% | -$3.13 | 
| 2012 | $13.71 | +1.5% | $16.80 | 
+1.5% | -$3.09 | 
| 2011 | $13.52 | +1.4% | $16.57 | 
+1.4% | -$3.04 | 
| 2010 | $13.38 | +1.1% | $16.39 | 
+1.1% | -$3.01 | 
| 2009 | $13.11 | +2.0% | $16.07 | 
+2.0% | -$2.95 | 
| 2008 | $12.76 | +2.8% | $15.63 | 
+2.8% | -$2.87 | 
| 2007 | $12.26 | +4.1% | $15.02 | 
+4.1% | -$2.76 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $14.77 |   | $23.35 | 
  | -$8.58 | 
| 2015 | $14.38 | +2.7% | $22.70 | 
+2.9% | -$8.31 | 
| 2014 | $14.09 | +2.0% | $22.21 | 
+2.2% | -$8.12 | 
| 2013 | $13.91 | +1.3% | $21.76 | 
+2.1% | -$7.85 | 
| 2012 | $13.71 | +1.5% | $21.39 | 
+1.7% | -$7.68 | 
| 2011 | $13.52 | +1.4% | $21.05 | 
+1.6% | -$7.53 | 
| 2010 | $13.38 | +1.1% | $20.70 | 
+1.7% | -$7.32 | 
| 2009 | $13.11 | +2.0% | $20.42 | 
+1.4% | -$7.30 | 
| 2008 | $12.76 | +2.8% | $19.90 | 
+2.6% | -$7.13 | 
| 2007 | $12.26 | +4.1% | $19.26 | 
+3.3% | -$7.00 | 
  | 
| Reference Date: 1st Quarter 2016 |