Year	Percent
2000	44.64744
2001	44.66142
2002	44.67541
2003	44.68939
2004	44.70338
2005	45.81904
2006	46.93402
2007	48.04831
2008	49.16192
2009	50.2797
2010	51.40148
2011	52.52683
2012	53.6551
2013	54.7861
2014	55.9192
2015	57.05439
2016	58.19102
2017	59.32867
2018	60.46708
2019	61.60565
2020	62.74411
2021	63.88201
2022	64.92008