Year	%
1992	5.77
1995	6.86
1996	7.14
1997	7.11
1998	9.97
1999	8.2
2000	7.03
2001	7.69
2002	6.71
2004	4.12
2005	3.6
2006	3.39
2007	3.91
2008	2.63
2009	3.72
2010	4.14
2011	4.39
2012	3.47
2013	4.73
2014	4.73
2015	5.05
2016	6.89
2017	8.94
2018	6.15
2019	6.15
2020	7.24
2021	7.25