Year	Percent
2000	2.2905
2001	9.5787
2002	4.468
2005	1.1742
2006	2.7539
2007	2.7626
2008	1.5942
2009	2.2199
2010	3.775
2011	1.9166
2012	2.3638
2013	4.9568
2014	4.6491
2015	4.3924
2016	2.8887
2017	3.5644