Year	Percent
2000	66.34842
2001	66.34232
2002	65.52159
2003	64.70101
2004	63.88058
2005	63.0603
2006	62.24016
2007	61.42018
2008	60.60035
2009	59.78067
2010	58.96113
2011	58.14175
2012	57.32252
2013	56.50343
2014	55.6845
2015	54.86571
2016	54.04708
2017	53.22859
2018	52.41026
2019	51.59207
2020	51.59207
2021	51.59207
2022	51.59207