Fossil fuel comprises coal, oil, petroleum, and natural gas products.
| Data | Valor | Modificar, % |
|---|---|---|
| 2015 | 11,3 | 3,30% |
| 2014 | 10,9 | 5,04% |
| 2013 | 10,4 | 0,71% |
| 2012 | 10,3 | 0,74% |
| 2011 | 10,3 | -10,98% |
| 2010 | 11,5 | -5,35% |
| 2009 | 12,2 | -7,57% |
| 2008 | 13,2 | -18,48% |
| 2007 | 16,2 | -18,07% |
| 2006 | 19,7 | -16,68% |
| 2005 | 23,7 | -1,79% |
| 2004 | 24,1 |