Year	%
1992	5.83
1993	4.94
1995	4.42
1996	6.66
1997	6.74
1998	9.13
1999	5.63
2000	5.05
2001	4.52
2002	6.45
2003	5.69
2004	2.26
2005	1.73
2006	1.44
2007	1.39
2008	1.12
2009	1.52
2010	1.36
2011	1.13
2012	1.16
2013	1.03
2014	1.15
2015	1.46
2016	1.69
2017	1.57
2018	1.81
2019	1.77
2020	1.54
2021	1.3