Year	%
1995	2.94
1996	1.69
1997	2.77
1998	2.76
2000	1.33
2001	1.63
2002	1.25
2003	2.04
2004	1.83
2005	7.46
2006	5.28
2007	5.42
2008	3.93
2009	4.92
2010	4.72
2011	4.27
2012	3.98
2013	4.09
2014	3.94
2015	9.2
2016	5.31
2017	7.72
2018	7.72
2019	8.73
2020	8.78
2021	7.86