Year	Percent
2000	6.43
2001	7.26
2002	6.78
2003	6.94
2004	6.3
2005	6.59
2006	5.65
2007	5.16
2008	4.76
2009	5.47
2010	5.21
2011	6.09
2012	6.72
2013	7.35
2014	6.72
2015	7.61
2016	7.28
2017	5.83
2018	5.86
2019	6.36
2020	6.13