Year	%
1995	10.23
1997	7.39
1998	10.08
1999	8.24
2000	7.5
2001	7.87
2002	7.02
2003	6.7
2004	5.01
2005	5.45
2006	5.25
2007	4.06
2008	2.13
2009	2.28
2010	1.73
2011	1.65
2012	2.5
2013	1.41
2014	1.26
2015	1.15
2020	1.74
2021	1.55