Year	%
2000	0.4671153873695
2001	0.477795953867128
2002	0.417082457333124
2003	0.422097617563915
2004	0.429764913652505
2005	0.435647054224085
2006	0.430770536366812
2007	0.43732089573969
2008	0.515622606017629
2009	0.510709026626563
2010	0.527410737416351
2011	0.520343939763609
2012	0.527974532173698
2013	0.442681221783355
2014	0.445930446457351
2015	0.450624609608097
2016	0.434385240194752
2017	0.41539268261684
2018	0.411229093725779
2019	0.403665408991782
2020	0.25907590213761