| Construct, assemble, or rebuild machines, such as engines, turbines, and similar equipment used in such industries as construction, extraction, textiles, and paper manufacturing. | 
  | 
| Mean Wage History | 
| Year | This Occupation | Compared to Occupational Group | Difference | 
| Current | $19.68 |   | $19.21 | 
  | $0.47 | 
| 2015 | $19.06 | +3.3% | $18.60 | 
+3.3% | $0.46 | 
| 2014 | $18.62 | +2.3% | $18.18 | 
+2.3% | $0.44 | 
| 2013 | $18.27 | +1.9% | $17.84 | 
+1.9% | $0.44 | 
| 2012 | $17.97 | +1.7% | $17.54 | 
+1.7% | $0.43 | 
| 2011 | $17.68 | +1.6% | $17.26 | 
+1.6% | $0.42 | 
| 2010 | $17.49 | +1.1% | $17.07 | 
+1.1% | $0.42 | 
| 2009 | $17.18 | +1.8% | $16.77 | 
+1.8% | $0.41 | 
| 2008 | $16.74 | +2.7% | $16.34 | 
+2.7% | $0.40 | 
| 2007 | $16.35 | +2.3% | $15.96 | 
+2.3% | $0.39 | 
| Year | This Occupation | Compared to All Occupations | Difference | 
| Current | $19.68 |   | $21.85 | 
  | -$2.17 | 
| 2015 | $19.06 | +3.3% | $21.24 | 
+2.9% | -$2.18 | 
| 2014 | $18.62 | +2.3% | $20.78 | 
+2.2% | -$2.16 | 
| 2013 | $18.27 | +1.9% | $20.37 | 
+2.1% | -$2.09 | 
| 2012 | $17.97 | +1.7% | $20.02 | 
+1.7% | -$2.04 | 
| 2011 | $17.68 | +1.6% | $19.70 | 
+1.6% | -$2.02 | 
| 2010 | $17.49 | +1.1% | $19.37 | 
+1.7% | -$1.88 | 
| 2009 | $17.18 | +1.8% | $19.11 | 
+1.4% | -$1.92 | 
| 2008 | $16.74 | +2.7% | $18.62 | 
+2.6% | -$1.88 | 
| 2007 | $16.35 | +2.3% | $18.02 | 
+3.3% | -$1.67 | 
  | 
| Reference Date: 1st Quarter 2016 |