Year	% of total energy use
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0.00252024400650809
2001	0.002507176062649082
2002	0.05489824876929178
2003	0.07385429815296632
2004	0.06390884980008928
2005	0.10052411166884803
2006	0.11924317458317914
2007	0.11424161763090722
2008	0.12444728857600255
2009	0.11511622574410911
2010	0.11070602981032368
2011	0.18501222535785436
2012	1.7404604869062992
2013	2.8956371187536205
2014	3.3192662067743703