Year	%
2000	0.5299777457944602
2001	0.5051593122423842
2002	0.45573325273831666
2003	0.42342323605386617
2004	0.4071136591242347
2005	0.38134914301940737
2006	0.3376978142932119
2007	0.31990282515195984
2008	0.3051000049871261
2009	0.28584225528239643
2010	0.2540297618390551
2011	0.24391445312746304
2012	0.2267820292213366
2013	0.21482461917939438
2014	0.19346241437831216
2015	0.1858077393796263
2016	0.17695248775552655
2017	0.17098017468900426
2018	0.16256901978659394
2019	0.15662403928356994
2020	0.14923041464054654