Year	Percent
2000	68.87749
2001	69.8047
2002	70.73191
2003	71.65912
2004	72.21758
2005	72.76661
2006	73.30623
2007	73.83642
2008	74.35719
2009	74.86855
2010	75.37048
2011	75.86299
2012	76.34608
2013	76.81975
2014	77.284
2015	77.73883
2016	78.18424
2017	78.62022
2018	79.04679
2019	79.46394
2020	79.87166
2021	80.26997
2022	81.11239