  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $26.78 |   | $17.54 | 
  | $9.24 | 
| 2015 | $25.93 | +3.3% | $16.98 | 
+3.3% | $8.95 | 
| 2014 | $25.34 | +2.3% | $16.60 | 
+2.3% | $8.74 | 
| 2013 | $24.86 | +1.9% | $16.29 | 
+1.9% | $8.58 | 
| 2012 | $24.45 | +1.7% | $16.01 | 
+1.7% | $8.44 | 
| 2011 | $24.06 | +1.6% | $15.76 | 
+1.6% | $8.30 | 
| 2010 | $23.80 | +1.1% | $15.59 | 
+1.1% | $8.21 | 
| 2009 | $23.38 | +1.8% | $15.32 | 
+1.8% | $8.07 | 
| 2008 | $22.77 | +2.7% | $14.92 | 
+2.7% | $7.86 | 
| 2007 | $22.25 | +2.3% | $14.57 | 
+2.3% | $7.68 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $26.78 |   | $19.32 | 
  | $7.46 | 
| 2015 | $25.93 | +3.3% | $18.78 | 
+2.9% | $7.15 | 
| 2014 | $25.34 | +2.3% | $18.38 | 
+2.2% | $6.97 | 
| 2013 | $24.86 | +1.9% | $18.01 | 
+2.1% | $6.86 | 
| 2012 | $24.45 | +1.7% | $17.70 | 
+1.7% | $6.75 | 
| 2011 | $24.06 | +1.6% | $17.42 | 
+1.6% | $6.64 | 
| 2010 | $23.80 | +1.1% | $17.13 | 
+1.7% | $6.67 | 
| 2009 | $23.38 | +1.8% | $16.90 | 
+1.4% | $6.49 | 
| 2008 | $22.77 | +2.7% | $16.46 | 
+2.6% | $6.31 | 
| 2007 | $22.25 | +2.3% | $15.94 | 
+3.3% | $6.31 | 
  | 
| Reference Date: 1st Quarter 2016 |