Year	Percent
2000	76.07454
2001	76.53359
2002	79.04236
2003	72.24039
2004	65.0474
2005	66.03273
2006	63.81803
2007	65.59815
2008	65.17457
2009	58.03575
2010	44.80003
2011	44.3005
2012	46.71273
2013	39.52996
2014	36.49908
2015	34.40375
2016	35.91871
2017	35.94262
2018	35.4967
2019	36.43715
2020	41.05197
2021	36.9621
2022	36.20305