Year	%
1993	5.37
1995	7.3
1996	2.39
1997	5.81
1998	2.66
1999	5.32
2000	1.82
2001	1.55
2002	1.57
2003	1.48
2004	1.84
2005	1.17
2006	1.2
2007	1.4
2008	1.59
2009	1.35
2010	1.27
2011	1.2
2013	1.22
2015	1.25
2016	1.05
2017	1.4
2018	1.38
2019	1.35
2020	1.34
2021	1.86