Year	% of total
2000	1.758539059857964
2001	1.3903743315508021
2002	1.3997308209959622
2003	1.4325068870523416
2004	2.768250857422832
2005	2.512337371018394
2006	2.277852954442941
2007	1.9441571871768357
2008	1.4722975590856258
2009	2.4115755627009645
2010	3.018575851393189
2011	1.810032752973625
2012	1.6153457849570922
2013	2.1915708812260535
2014	2.7777777777777777
2015	2.2879555482922047