Year	Percent
2000	79.61306
2001	79.99207
2002	80.83439
2003	81.68109
2004	82.53215
2005	83.38758
2006	84.24738
2007	85.11155
2008	85.98009
2009	86.853
2010	87.73028
2011	88.61193
2012	89.49795
2013	90.38833
2014	91.28309
2015	92.18222
2016	93.08572
2017	93.99359
2018	94.90582
2019	95.82243
2020	96.74341
2021	97.66875
2022	98.42583