Year	%
2000	0.63170761877988
2001	0.649995824936846
2002	0.558450617724469
2003	0.565661381771469
2004	0.562991775367641
2005	0.536577952059319
2006	0.414538367156678
2007	0.385866296574647
2008	0.346434643197232
2009	0.320265575452379
2010	0.30275340346721
2011	0.292628342914722
2012	0.285366258836424
2013	0.281993055221774
2014	0.222719311426845
2015	0.218716650905745
2016	0.212888257702277
2017	0.209593078879474
2018	0.205312271073059
2019	0.207181937319032
2020	0.214637371920403