Year	%
1988	0.6281743
1991	0.531364
1993	0.4405327
1996	0.2934272
1997	0.4818155
1998	1.133201
1999	1.034912
2000	0.0545641
2001	0.0407162
2002	0.3118888
2003	0.0405355
2004	0
2005	0.0318819
2006	0.0084627
2007	0.0634419
2008	0
2009	0
2010	0
2011	0.0286533
2012	0.0242889
2013	0.0190125
2014	0.0619753
2016	0.0314233
2020	0.0342359
2021	0.0235848