Year	%
1989	9.78
1993	3.26
1995	7.75
1996	6.23
1997	6.14
1998	6.5
1999	6.71
2000	5.06
2001	5.48
2002	5.78
2003	19.75
2004	5.21
2005	4.49
2006	4.32
2007	4.53
2008	4.02
2009	5.01
2010	4.2
2011	3.74
2012	4.17
2013	4.44
2014	4.39
2015	5.35
2016	5.69
2017	5.69
2018	5.39
2019	19.31
2020	6.19
2021	5.47