Year	Percent
2000	4.95
2001	6.01
2002	5.56
2003	5.72
2004	4.97
2005	5.23
2006	4.92
2007	3.69
2008	3.59
2009	4.19
2010	4.27
2011	4.77
2012	5.52
2013	5.75
2014	6.03
2015	6.44
2016	5.85
2017	4.92
2018	4.69
2019	5.28
2020	5.43