Year	%
1993	4.71
1999	28.99
2000	12.69
2001	12.25
2002	11.19
2003	10.55
2004	4.2
2005	6.73
2006	8.25
2007	6.46
2008	6.84
2009	8.62
2011	8.75
2012	3.96
2013	5.44
2014	5.08
2015	6.44
2016	6.13
2017	5.61
2021	5.99