Fossil fuel comprises coal, oil, petroleum, and natural gas products.
| Data | Valor | Modificar, % |
|---|---|---|
| 2015 | 74,6 | 1,91% |
| 2014 | 73,3 | 6,70% |
| 2013 | 68,6 | -1,98% |
| 2012 | 70,0 | -8,66% |
| 2011 | 76,7 | -1,20% |
| 2010 | 77,6 | 5,62% |
| 2009 | 73,5 | -2,27% |
| 2008 | 75,2 | -1,11% |
| 2007 | 76,0 | 2,73% |
| 2006 | 74,0 | -0,32% |
| 2005 | 74,2 | -1,25% |
| 2004 | 75,2 |