Year	%
1994	30.74
1996	26.66
1997	25.27
1998	19.98
2000	13.39
2001	13.1
2003	13.13
2006	13.31
2008	12.98
2009	12.91
2010	12.67
2011	13.15
2012	12.73
2013	12.43
2014	12.57
2015	12.56
2016	12.37
2019	12.41
2020	12.41
2021	12.4