Fossil fuel comprises coal, oil, petroleum, and natural gas products.
| तिथि | मान | बदले , % |
|---|---|---|
| 2014 | 33.7 | 0.26% |
| 2013 | 33.6 | -0.60% |
| 2012 | 33.8 | 0.53% |
| 2011 | 33.6 | 3.24% |
| 2010 | 32.6 | 6.09% |
| 2009 | 30.7 | 2.30% |
| 2008 | 30.0 | -0.78% |
| 2007 | 30.3 | 0.49% |
| 2006 | 30.1 | 3.78% |
| 2005 | 29.0 | -6.76% |
| 2004 | 31.1 | 0.46% |
| 2003 | 31.0 |