Year	%
1995	43.27
1998	41.27
1999	23
2000	22.98
2001	18.37
2002	16.57
2003	16.13
2004	14.92
2005	14.6
2006	14.69
2007	14.89
2008	12.99
2009	14.37
2010	14.31
2011	13.99
2012	13.29
2013	14.08
2014	11.86
2015	10.84
2016	11.56
2018	11.08
2019	10.83
2020	9.01
2021	9.21