
| Monthly earnings | Basic monthly salary | |||||
|---|---|---|---|---|---|---|
| 2012 | 2013 | 2012 - 2013 | 2012 | 2013 | 2012 - 2013 | |
| Oil and gas extraction, mining and quarrying, total | 60 200 | 63 800 | 6.0 | 51 000 | 53 700 | 5.3 |
| Oil and gas extraction | 61 900 | 65 400 | 5.7 | 52 100 | 54 700 | 5.0 |
| Mining | 41 200 | 41 800 | 1.5 | 38 300 | 39 100 | 2.1 |