Year	Percent
2000	41.67271
2001	42.48995
2002	44.03619
2003	45.60095
2004	47.18388
2005	48.78334
2006	50.39938
2007	52.03159
2008	53.68002
2009	55.34177
2010	57.01812
2011	58.70825
2012	60.41135
2013	62.1258
2014	63.84797
2015	65.5767
2016	67.31084
2017	69.05089
2018	70.79535
2019	72.54431
2020	74.29672
2021	76.05271
2022	77.81126