Year	%
1988	13.07361
1990	18.41671
1991	18.51226
1993	0.3355266
1996	48.80529
1997	0.8641976
1999	0.8385398
2000	0.3481031
2001	0.3330605
2002	0.4949261
2003	0.4520802
2004	0.200701
2005	0.4296249
2006	0.4559725
2007	0.4174636
2008	0.4697558
2009	0.5606148
2010	0.3855787
2011	0.4778409
2012	0.4113138
2013	0.3417785
2014	0
2015	0.3926891
2016	0.3888285
2017	0.0829217
2018	0.0799329
2019	0.0716044
2020	0.0559527
2021	0.020562