Year	% of total
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0.014188422247446084
1999	0.05828354946816262
2000	0.014682131845543973
2001	0.015718327569946556
2002	0.016417665407978985
2003	0.014841199168892847
2004	0.014999250037498125
2005	0
2006	0
2007	0
2008	0
2009	0.029291154071470416
2010	0.34435261707988984
2011	1.301967746708093
2012	4.758862983072501
2013	5.940269117164424
2014	3.6471901749162634
2015	3.2412327311370883