Year	%
1996	18.52
1999	16.3
2000	16.34
2001	12.22
2002	12.69
2003	12.78
2005	13.76
2006	9.43
2007	9
2010	5.92
2011	5.8
2012	6.75
2013	10.55
2014	8.11
2015	7.84
2016	9.25
2019	16.7
2020	9.08