Year	Percent
2000	51.89988
2001	53.60843
2002	55.31485
2003	57.01914
2004	58.53309
2005	59.80226
2006	61.04359
2007	62.25746
2008	63.4541
2009	64.67667
2010	65.87016
2011	67.03474
2012	68.17061
2013	69.2777
2014	70.35671
2015	71.4076
2016	72.43058
2017	73.42565
2018	74.39437
2019	75.33672
2020	76.25311
2021	77.06604
2022	78.0065