Year	%
1989	53.54
1994	55.48
1998	18.24
1999	16.31
2000	16.31
2001	16.32
2002	16.05
2003	18.67
2004	13.98
2005	9.36
2006	9.46
2007	7.49
2008	5.42
2009	7.2
2010	5.8
2011	5.26
2012	8.68
2013	7.96
2015	7.14
2016	7.9
2019	4.65
2020	5.78
2021	5.75