Year	Percent
2000	59.24975
2001	59.98043
2002	60.71111
2003	61.44178
2004	62.41892
2005	63.40185
2006	64.39057
2007	65.38508
2008	66.38539
2009	67.39149
2010	68.40339
2011	69.42107
2012	70.44455
2013	71.47382
2014	72.50889
2015	73.54975
2016	74.5964
2017	75.64884
2018	76.70708
2019	77.77111
2020	78.84093
2021	79.91655
2022	80.69936