  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $31.13 |   | $27.07 | 
  | $4.06 | 
| 2015 | $30.40 | +2.4% | $26.44 | 
+2.4% | $3.97 | 
| 2014 | $29.75 | +2.2% | $25.87 | 
+2.2% | $3.88 | 
| 2013 | $29.30 | +1.5% | $25.48 | 
+1.5% | $3.82 | 
| 2012 | $29.05 | +.9% | $25.26 | 
+.9% | $3.79 | 
| 2011 | $28.62 | +1.5% | $24.89 | 
+1.5% | $3.73 | 
| 2010 | $28.29 | +1.2% | $24.60 | 
+1.2% | $3.69 | 
| 2009 | $27.99 | +1.1% | $24.34 | 
+1.1% | $3.65 | 
| 2008 | $27.06 | +3.4% | $23.53 | 
+3.4% | $3.53 | 
| 2007 | $26.03 | +4.0% | $22.64 | 
+4.0% | $3.40 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $31.13 |   | $20.85 | 
  | $10.28 | 
| 2015 | $30.40 | +2.4% | $20.27 | 
+2.9% | $10.14 | 
| 2014 | $29.75 | +2.2% | $19.83 | 
+2.2% | $9.92 | 
| 2013 | $29.30 | +1.5% | $19.43 | 
+2.1% | $9.86 | 
| 2012 | $29.05 | +.9% | $19.10 | 
+1.7% | $9.95 | 
| 2011 | $28.62 | +1.5% | $18.80 | 
+1.6% | $9.82 | 
| 2010 | $28.29 | +1.2% | $18.48 | 
+1.7% | $9.81 | 
| 2009 | $27.99 | +1.1% | $18.23 | 
+1.4% | $9.76 | 
| 2008 | $27.06 | +3.4% | $17.77 | 
+2.6% | $9.30 | 
| 2007 | $26.03 | +4.0% | $17.20 | 
+3.3% | $8.83 | 
  | 
| Reference Date: 1st Quarter 2016 |