Year	Percent
2000	62.79653
2001	63.39497
2002	63.99526
2003	64.5974
2004	65.2014
2005	65.80726
2006	66.41496
2007	67.02453
2008	67.63595
2009	68.24922
2010	68.86435
2011	69.48133
2012	70.10017
2013	70.72087
2014	71.34341
2015	71.96782
2016	72.59407
2017	73.22219
2018	73.85216
2019	74.48398
2020	75.11766
2021	75.75319
2022	76.39057