Year	%
1994	23.62
1999	11.97
2000	14.09
2001	11.85
2002	11.02
2004	10.43
2005	7
2006	7.04
2007	7.28
2008	7.1
2009	6.97
2010	6.88
2011	6.78
2012	9.83
2013	9.91
2014	9.72
2015	12.49
2016	12.21
2018	8.13
2019	7.86
2020	8.45
2021	8.65