Year	%
1989	92.40919
1991	92.66013
1993	93.83485
1995	57.90113
1999	87.85272
2000	46.93856
2001	49.82122
2003	46.93846
2004	23.85524
2005	22.12368
2006	22.94062
2007	19.16292
2008	19.79976
2009	20.22404
2010	19.62081
2011	20.77977
2013	26.58887
2014	18.22386
2015	16.70403
2021	20.1111