Year	Percent
2000	13.0506
2001	8.5781
2002	7.0387
2003	5.4977
2004	8.9127
2005	5.8073
2006	6.2029
2007	5.6794
2008	7.6859
2009	3.4469
2010	3.4986
2011	3.8878
2012	3.0698
2013	4.279
2014	3.9057
2015	3.25
2016	3.0767
2017	4.2371