Year	%
1995	50.37
1998	44.38
1999	26.41
2000	26.06
2001	22.45
2002	19.01
2003	18.55
2004	15.9
2005	14.66
2006	14.57
2007	13.26
2008	11.81
2009	12.12
2010	13.01
2011	11.85
2012	11.92
2013	12.62
2014	11.12
2015	11.49
2016	11.74
2018	12.02
2019	11.24
2020	10.99
2021	11.65