Year	Percent
2000	3.18
2002	1.78
2003	2.63
2005	3.37
2006	2.61
2007	3.49
2008	3.94
2009	5.82
2010	4.16
2011	2.91
2012	4.17
2013	5.31
2014	6.08
2015	5.24
2016	3.44
2017	2.49
2018	3.32
2019	1.49
2020	3.48