Year	%
1993	8.78
1998	9.14
1999	8.83
2000	11.58
2002	11.98
2003	12.06
2004	12.11
2005	11.91
2006	11.81
2007	11.86
2008	19.2
2009	12.2
2010	12.02
2011	12.27
2012	12.08
2013	11.8
2014	11.75
2015	11.86
2016	12.15
2018	15.82
2019	27.66
2020	13.29
2021	13.48