Year	Percent
2000	59.54107
2001	60.41514
2002	61.29867
2003	62.18153
2004	63.05867
2005	63.92923
2006	64.79351
2007	65.65135
2008	66.50274
2009	67.34683
2010	68.18402
2011	69.014
2012	69.83676
2013	70.65182
2014	71.45943
2015	72.25935
2016	73.05147
2017	73.8356
2018	74.61168
2019	75.37965
2020	76.13945
2021	76.89099
2022	77.63425