Year	%
1995	12.45
1996	13.57
1997	10.65
1998	9.87
1999	9.52
2000	8.33
2001	9.85
2002	10.63
2003	8.63
2004	8.85
2005	10.45
2006	8.11
2007	8.49
2008	7.7
2009	6.59
2010	6.08
2011	5.98
2012	5.56
2013	5.56
2014	5.21
2016	5.14
2018	4.86
2019	4.69
2020	4.61
2021	4.39