Year	Percent
2000	52.55399
2001	54.19194
2002	55.82989
2003	57.46784
2004	59.10579
2005	60.74374
2006	62.38169
2007	64.01964
2008	65.65759
2009	67.29554
2010	68.93349
2011	70.57144
2012	72.14188
2013	73.70926
2014	75.27358
2015	76.83483
2016	78.39302
2017	79.94815
2018	81.50022
2019	83.04922
2020	84.59516
2021	86.13804
2022	86.13804