Year	Percent
2000	41.08423
2001	41.41036
2002	42.51756
2003	43.62496
2004	44.73254
2005	45.8701
2006	47.02915
2007	48.18665
2008	49.34251
2009	50.4963
2010	51.64798
2011	52.79783
2012	53.94578
2013	55.09111
2014	56.23441
2015	57.37532
2016	58.51407
2017	59.65265
2018	60.79142
2019	61.92981
2020	63.06756
2021	64.20442
2022	65.34012