Year	%
1993	6.1
1995	6.74
1996	3.19
1997	5.65
1998	3.2
1999	5.34
2000	2.38
2001	1.95
2002	1.84
2003	1.92
2004	2.18
2005	1.5
2006	1.47
2007	2.06
2008	1.97
2009	2.21
2010	2.35
2011	2.65
2013	2.78
2015	3.19
2016	2.74
2017	3.45
2018	2.5
2019	3.13
2020	2.85
2021	3.22