Year	%
1993	64.07
1997	20.6
2000	29.53
2001	29.08
2002	28.81
2003	28.49
2005	19.23
2006	15.73
2007	13.3
2008	11.89
2009	9.16
2010	16.97
2011	14.08
2012	4.83
2014	4.32
2015	4.35
2016	4.3
2017	4.34
2019	4.33
2020	4.33
2021	5.73