Fossil fuel comprises coal, oil, petroleum, and natural gas products.
| Data | Valor | Modificar, % |
|---|---|---|
| 2015 | 93,0 | -1,46% |
| 2014 | 94,4 | -0,24% |
| 2013 | 94,6 | 0,01% |
| 2012 | 94,6 | 5,41% |
| 2011 | 89,8 | 10,94% |
| 2010 | 80,9 | -0,39% |
| 2009 | 81,2 | -2,39% |
| 2008 | 83,2 | -0,32% |
| 2007 | 83,5 | 2,49% |
| 2006 | 81,5 | -0,19% |
| 2005 | 81,6 | -1,32% |
| 2004 | 82,7 |