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 , % |
|---|---|---|
| 2015 | 37,5 | 5,88 % |
| 2014 | 35,4 | 1,72 % |
| 2013 | 34,8 | -1,96 % |
| 2012 | 35,5 | 6,91 % |
| 2011 | 33,2 | -5,11 % |
| 2010 | 35,0 | -0,54 % |
| 2009 | 35,2 | -1,71 % |
| 2008 | 35,8 | 12,51 % |
| 2007 | 31,8 | -3,82 % |
| 2006 | 33,1 | -11,69 % |
| 2005 | 37,5 | -0,36 % |
| 2004 | 37,6 |