Year	Percent
2000	85.63808
2001	85.63377
2002	85.62946
2003	85.62515
2004	85.69365
2005	86.06027
2006	86.42352
2007	86.7832
2008	87.13936
2009	87.49162
2010	87.84045
2011	88.28549
2012	88.79879
2013	89.29448
2014	89.77447
2015	90.23849
2016	90.68742
2017	91.11489
2018	91.5231
2019	91.88826
2020	92.16803
2021	92.30972
2022	92.43997