Year	Percent
2000	8.05081
2001	10.41389
2002	12.76716
2003	15.06599
2004	17.34002
2005	19.58857
2006	21.81185
2007	24.00108
2008	26.16652
2009	28.30788
2010	30.4253
2011	32.51866
2012	34.58343
2013	36.62644
2014	38.64773
2015	40.64731
2016	42.62515
2017	44.5813
2018	46.5156
2019	48.42792
2020	50.31808
2021	50.29887
2022	50.27919