Year	%
1993	65
1997	21.65
2000	31.69
2001	30.86
2002	30.65
2003	30.09
2005	26.2
2006	24.2
2007	23.05
2008	21.34
2009	18.07
2010	16.84
2011	14.27
2012	12.94
2014	11.15
2015	11.55
2016	11.54
2017	11.53
2019	11.53
2020	11.53
2021	14.39