Year	Percent
2000	75.96281
2001	76.36898
2002	76.87821
2003	77.40195
2004	77.9204
2005	78.43187
2006	78.9371
2007	79.43533
2008	79.92672
2009	80.40943
2010	80.88502
2011	81.35199
2012	81.81798
2013	82.27516
2014	82.72342
2015	83.16192
2016	83.58641
2017	83.99612
2018	84.39131
2019	84.83948
2020	85.27519
2021	85.69866
2022	85.91211