Year	Percent
2000	75.44817
2001	75.46309
2002	75.47847
2003	75.49429
2004	75.51055
2005	75.52696
2006	75.54412
2007	75.56172
2008	75.57977
2009	75.59794
2010	75.61981
2011	75.6455
2012	75.67483
2013	75.70828
2014	75.7453
2015	75.78705
2016	75.83263
2017	75.88252
2018	75.93685
2019	75.99575
2020	76.04992
2021	76.10705
2022	76.16712