Year	%
1993	55.71
1997	18.26
2000	26.41
2001	26.24
2002	25.86
2003	24.68
2005	14.53
2006	10.78
2007	9.11
2008	8.08
2009	5.99
2010	12.78
2011	10.54
2012	2.59
2014	2.1
2015	2.14
2016	2.38
2017	2.26
2019	2.33
2020	2.33
2021	3.07