  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $37.07 |   | $27.20 | 
  | $9.87 | 
| 2015 | $36.08 | +2.7% | $26.48 | 
+2.7% | $9.61 | 
| 2014 | $35.37 | +2.0% | $25.95 | 
+2.0% | $9.42 | 
| 2013 | $34.92 | +1.3% | $25.62 | 
+1.3% | $9.30 | 
| 2012 | $34.41 | +1.5% | $25.25 | 
+1.5% | $9.16 | 
| 2011 | $33.93 | +1.4% | $24.90 | 
+1.4% | $9.03 | 
| 2010 | $33.57 | +1.1% | $24.63 | 
+1.1% | $8.94 | 
| 2009 | $32.91 | +2.0% | $24.15 | 
+2.0% | $8.76 | 
| 2008 | $32.02 | +2.8% | $23.49 | 
+2.8% | $8.52 | 
| 2007 | $30.76 | +4.1% | $22.57 | 
+4.1% | $8.19 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $37.07 |   | $20.85 | 
  | $16.22 | 
| 2015 | $36.08 | +2.7% | $20.27 | 
+2.9% | $15.82 | 
| 2014 | $35.37 | +2.0% | $19.83 | 
+2.2% | $15.53 | 
| 2013 | $34.92 | +1.3% | $19.43 | 
+2.1% | $15.48 | 
| 2012 | $34.41 | +1.5% | $19.10 | 
+1.7% | $15.31 | 
| 2011 | $33.93 | +1.4% | $18.80 | 
+1.6% | $15.13 | 
| 2010 | $33.57 | +1.1% | $18.48 | 
+1.7% | $15.09 | 
| 2009 | $32.91 | +2.0% | $18.23 | 
+1.4% | $14.68 | 
| 2008 | $32.02 | +2.8% | $17.77 | 
+2.6% | $14.25 | 
| 2007 | $30.76 | +4.1% | $17.20 | 
+3.3% | $13.56 | 
  | 
| Reference Date: 1st Quarter 2016 |