Year	Percent
2000	44.41276
2001	45.77595
2002	47.15448
2003	48.54833
2004	49.95752
2005	51.38204
2006	52.8219
2007	54.27709
2008	55.74761
2009	57.23347
2010	58.73466
2011	60.25118
2012	61.78303
2013	63.33022
2014	64.89274
2015	66.4706
2016	68.06379
2017	69.67231
2018	71.29616
2019	72.93535
2020	74.58987
2021	76.25972
2022	77.94491