Year	Percent
2000	50.02019
2001	50.72769
2002	51.43399
2003	52.13943
2004	52.84365
2005	53.54664
2006	54.24873
2007	54.94956
2008	55.64913
2009	56.34743
2010	57.04478
2011	58.18184
2012	59.32821
2013	60.48388
2014	61.64879
2015	62.82726
2016	64.01924
2017	65.22465
2018	66.44346
2019	67.67525
2020	68.92063
2021	70.1792
2022	71.45121