Year	% of total
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0.9871734604794843
2006	0.8744749707360739
2007	0.7687120701281187
2008	0.9161082364916447
2009	3.6091311016872685
2010	1.7107438016528926
2011	1.5239477503628447
2012	1.1867088607594938
2013	0.7208621797159375
2014	0.5764479824320614
2015	0.29163468917881813