| 2008 | 2009 | 2010 | 2011 | 2012 |
Mean Main Electricity Supply % | 55.71 | 53.9 | 62.88 | 49.49 | 51.66 |
Mean Diesel Generators % | 44.27 | 46.09 | 37.11 | 50.50 | 48.33 |
Mean Diesel Fuelled Boilers % | 0.014 | 0.011 | 0.014 | 0.011 | 0.010 |