Year	Percent
2000	0.50726
2001	0.25382
2002	0.51239
2003	0.44942
2004	0.41685
2005	0.43983
2006	0.42113
2007	0.43012
2008	0.56661
2009	0.92487
2010	0.39968
2011	0.86813
2012	1.17446
2013	0.37555
2014	0.23337
2015	0.63213
2016	0.39762