Year	% of total fuel combustion
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	2.652519893899205
2009	4.597701149425286
2010	4.978354978354979
2011	5.371900826446281
2012	6.521739130434782
2013	7.5289575289575295
2014	8.032786885245901