Year	%
1995	8.66
1997	6.8
1998	6.98
1999	5.94
2000	5.81
2001	6.44
2002	6.11
2003	6.18
2004	4.9
2005	5.82
2006	5.39
2007	4.53
2008	2.74
2009	2.84
2010	2.35
2011	2.21
2012	2.46
2013	1.75
2014	1.48
2015	1.39
2020	1.59
2021	1.72