  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $20.81 |   | $27.07 | 
  | -$6.26 | 
| 2015 | $20.32 | +2.4% | $26.44 | 
+2.4% | -$6.11 | 
| 2014 | $19.89 | +2.2% | $25.87 | 
+2.2% | -$5.98 | 
| 2013 | $19.58 | +1.5% | $25.48 | 
+1.5% | -$5.89 | 
| 2012 | $19.42 | +.9% | $25.26 | 
+.9% | -$5.84 | 
| 2011 | $19.13 | +1.5% | $24.89 | 
+1.5% | -$5.75 | 
| 2010 | $18.91 | +1.2% | $24.60 | 
+1.2% | -$5.68 | 
| 2009 | $18.71 | +1.1% | $24.34 | 
+1.1% | -$5.62 | 
| 2008 | $18.09 | +3.4% | $23.53 | 
+3.4% | -$5.44 | 
| 2007 | $17.40 | +4.0% | $22.64 | 
+4.0% | -$5.23 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $20.81 |   | $20.85 | 
  | -$0.04 | 
| 2015 | $20.32 | +2.4% | $20.27 | 
+2.9% | $0.06 | 
| 2014 | $19.89 | +2.2% | $19.83 | 
+2.2% | $0.05 | 
| 2013 | $19.58 | +1.5% | $19.43 | 
+2.1% | $0.15 | 
| 2012 | $19.42 | +.9% | $19.10 | 
+1.7% | $0.32 | 
| 2011 | $19.13 | +1.5% | $18.80 | 
+1.6% | $0.33 | 
| 2010 | $18.91 | +1.2% | $18.48 | 
+1.7% | $0.43 | 
| 2009 | $18.71 | +1.1% | $18.23 | 
+1.4% | $0.48 | 
| 2008 | $18.09 | +3.4% | $17.77 | 
+2.6% | $0.32 | 
| 2007 | $17.40 | +4.0% | $17.20 | 
+3.3% | $0.20 | 
  | 
| Reference Date: 1st Quarter 2016 |