Year	%
1994	24.05
1996	21.14
1997	21.23
1998	16.68
2000	12.36
2001	12.4
2003	12.41
2006	13.15
2008	12.69
2009	12.69
2010	14.53
2011	14.94
2012	14.88
2013	15.32
2014	15.64
2015	15.63
2016	14.84
2019	14.86
2020	14.88
2021	14.88