Year	% of total
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	3.983516483516483
2003	5.373525557011796
2004	3.4355828220858897
2005	4.564315352697095
2006	4.325699745547073
2007	3.351206434316354
2008	3.1039136302294197
2009	3.7124802527646126
2010	3.2
2011	4.905660377358491
2012	36.05299860529986
2013	57.14285714285714
2014	60.483344219464406
2015	45.48555833522857