Year	Percent
2000	73.62821
2001	73.97503
2002	74.32185
2003	74.66867
2004	75.01549
2005	75.36231
2006	75.70913
2007	76.05595
2008	76.40276
2009	76.74958
2010	77.0964
2011	77.44322
2012	77.67188
2013	77.89948
2014	78.12603
2015	78.35153
2016	78.57597
2017	78.79936
2018	79.02169
2019	79.24298
2020	79.4632
2021	79.68238
2022	79.68238