Year	Percent
2000	71.00451
2001	71.29399
2002	71.58398
2003	71.87448
2004	72.16548
2005	72.45699
2006	72.74901
2007	73.04154
2008	73.33457
2009	73.62811
2010	73.92216
2011	74.21671
2012	74.51178
2013	74.80735
2014	75.10342
2015	75.4
2016	75.6971
2017	75.99469
2018	76.2928
2019	76.59141
2020	76.89053
2021	77.19016
2022	77.49029