Year	Percent
2000	74.40647
2001	74.6374
2002	74.86168
2003	75.07931
2004	75.29029
2005	75.49462
2006	75.6923
2007	75.88333
2008	76.06772
2009	76.24545
2010	76.41653
2011	76.58097
2012	76.73875
2013	76.88989
2014	77.03438
2015	77.17222
2016	77.3034
2017	77.42794
2018	77.54583
2019	77.65707
2020	77.76166
2021	77.85961
2022	77.85961