Year	% of total fuel combustion
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0.6741573033707865
2001	0.5319148936170214
2002	0.42194092827004215
2003	0.3802281368821293
2004	0.5780346820809248
2005	5.112474437627812
2006	4.918032786885246
2007	4.3624161073825505
2008	3.2810271041369474
2009	3.374233128834356
2010	2.980132450331126
2011	3.3287101248266295
2012	2.8213166144200628
2013	5.405405405405405
2014	17.464114832535884