Clean energy is noncarbohydrate energy that does not produce carbon dioxide when generated. It includes hydropower and nuclear, geothermal, and solar power, among others.
| Fecha | Valor | Cambiar , % |
|---|---|---|
| 2013 | 6,9 | 1,98 % |
| 2012 | 6,8 | 24,85 % |
| 2011 | 5,4 | 47,65 % |
| 2010 | 3,7 | -17,90 % |
| 2009 | 4,5 | 5,83 % |
| 2008 | 4,2 | 6,53 % |
| 2007 | 4,0 | 7,88 % |
| 2006 | 3,7 | 19,15 % |
| 2005 | 3,1 | -7,95 % |
| 2004 | 3,4 | -14,87 % |
| 2003 | 4,0 | 0,70 % |
| 2002 | 3,9 |