Year	%
1993	19.96
1997	11.86
2001	12.01
2002	8.76
2003	10.69
2004	10.67
2005	9.98
2006	10.31
2007	9.93
2008	9.7
2009	9.19
2010	8.85
2011	9.21
2012	9.05
2013	8.64
2015	8.17
2016	19.87
2018	8.7
2020	9.3
2021	9.29