  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $27.87 |   | $24.44 | 
  | $3.43 | 
| 2015 | $27.18 | +2.5% | $23.83 | 
+2.5% | $3.34 | 
| 2014 | $26.62 | +2.1% | $23.34 | 
+2.1% | $3.28 | 
| 2013 | $26.06 | +2.1% | $22.85 | 
+2.1% | $3.21 | 
| 2012 | $25.68 | +1.5% | $22.52 | 
+1.5% | $3.16 | 
| 2011 | $25.12 | +2.2% | $22.03 | 
+2.2% | $3.09 | 
| 2010 | $24.83 | +1.2% | $21.78 | 
+1.2% | $3.06 | 
| 2009 | $24.41 | +1.7% | $21.40 | 
+1.7% | $3.00 | 
| 2008 | $23.69 | +3.0% | $20.78 | 
+3.0% | $2.92 | 
| 2007 | $23.00 | +3.0% | $20.17 | 
+3.0% | $2.83 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $27.87 |   | $20.85 | 
  | $7.02 | 
| 2015 | $27.18 | +2.5% | $20.27 | 
+2.9% | $6.91 | 
| 2014 | $26.62 | +2.1% | $19.83 | 
+2.2% | $6.79 | 
| 2013 | $26.06 | +2.1% | $19.43 | 
+2.1% | $6.63 | 
| 2012 | $25.68 | +1.5% | $19.10 | 
+1.7% | $6.58 | 
| 2011 | $25.12 | +2.2% | $18.80 | 
+1.6% | $6.32 | 
| 2010 | $24.83 | +1.2% | $18.48 | 
+1.7% | $6.35 | 
| 2009 | $24.41 | +1.7% | $18.23 | 
+1.4% | $6.18 | 
| 2008 | $23.69 | +3.0% | $17.77 | 
+2.6% | $5.93 | 
| 2007 | $23.00 | +3.0% | $17.20 | 
+3.3% | $5.80 | 
  | 
| Reference Date: 1st Quarter 2016 |