Year	%
1995	64.43864
1996	60.79074
1997	62.94693
1998	59.83919
1999	52.84713
2000	38.42176
2001	38.35321
2002	40.4287
2004	38.99738
2005	19.33467
2006	10.77725
2007	11.49326
2008	18.70101
2009	12.08901
2010	11.54901
2011	7.204632
2012	3.568481
2013	10.56122
2014	9.346094
2015	9.25967
2016	9.33277
2017	7.715229
2018	2.191491
2019	2.330312
2020	2.184889
2021	2.262538