Year	Percent
2000	74.23596
2001	74.41827
2002	74.60059
2003	74.78291
2004	74.96523
2005	75.14755
2006	75.32986
2007	75.83881
2008	76.34933
2009	76.86142
2010	77.3751
2011	77.89035
2012	78.40717
2013	78.92558
2014	79.44556
2015	79.96712
2016	80.49026
2017	81.01497
2018	81.54126
2019	82.06913
2020	82.59858
2021	83.1296
2022	83.6622