Year	%
1995	7.55
1996	8.53
1997	6.07
1998	4.46
1999	8.61
2000	2.79
2001	3.98
2002	4.08
2003	4.35
2004	5.02
2005	6.33
2006	5.35
2007	5.13
2008	5.2
2009	4.14
2010	4.02
2011	4.18
2012	4.11
2013	3.79
2014	3.74
2015	3.65
2016	3.43
2017	3.31
2018	3.21
2019	3.05
2020	3.12
2021	2.92