Year	%
1993	3.45
1996	3.69
1998	10.43
1999	8.93
2000	10.82
2001	6.33
2003	8.7
2004	9.52
2005	9.72
2006	8.28
2007	8.85
2008	7.35
2009	6.54
2010	5.98
2011	5.78
2012	5.94
2013	5.89
2014	5.97
2015	6.01
2016	5.35
2017	4.57
2019	4.59
2021	4.9