| Year | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 |
| Heavy Industry | 84.8% | 86.3% | 84.5% | 82.5% | 83.0% | 79.7% | 78.6% |
| Light Industry | 15.2% | 13.7% | 15.5% | 17.5% | 17.0% | 20.3% | 21.4% |