Year	%
1992	12.66
1993	12.53
1995	8.34
1996	13.33
1997	13.93
1998	15.67
1999	11.29
2000	10.52
2001	9.25
2002	12.01
2003	12.87
2004	5.96
2005	5.22
2006	5.49
2007	5.83
2008	5.39
2009	5.93
2010	5.99
2011	5.68
2012	6.02
2013	6.27
2014	6.63
2015	7.35
2016	7.53
2017	7.93
2018	7.42
2019	7.26
2020	6.88
2021	6.51