Year	Percent
2000	70.68044
2001	70.68044
2002	70.68044
2003	71.12623
2004	71.56071
2005	71.98389
2006	72.39575
2007	72.79631
2008	73.18557
2009	73.56351
2010	73.93015
2011	74.28548
2012	74.6295
2013	74.96222
2014	75.28363
2015	75.59373
2016	75.89252
2017	76.18001
2018	76.45619
2019	76.72106
2020	76.97462
2021	77.21688
2022	77.44783