Year	%
1995	44.95
1998	40.69
1999	23.13
2000	23.12
2001	20.62
2002	17.39
2003	16.72
2004	13.02
2005	13.01
2006	12.77
2007	12.23
2008	9.7
2009	9.88
2010	10.2
2011	9.74
2012	9.79
2013	9.41
2014	9.91
2015	10.66
2016	11.32
2018	10.57
2019	9.82
2020	9.54
2021	9.9