Fossil fuel comprises coal, oil, petroleum, and natural gas products.
| तिथि | मान | बदले , % |
|---|---|---|
| 2014 | 97.8 | -0.98% |
| 2013 | 98.8 | -0.28% |
| 2012 | 99.0 | -0.20% |
| 2011 | 99.2 | -0.44% |
| 2010 | 99.7 | -0.21% |
| 2009 | 99.9 | -0.01% |
| 2008 | 99.9 | -0.02% |
| 2007 | 99.9 | -0.01% |
| 2006 | 99.9 | -0.02% |
| 2005 | 99.9 | -0.01% |
| 2004 | 100.0 | -0.01% |
| 2003 | 100.0 |