Year	%
1991	11.27
1992	16.7
1996	7.08
1999	20.03
2001	5.92
2002	4.02
2003	4.81
2004	6.99
2005	4.83
2006	3.26
2007	3.17
2008	3.11
2010	8.24
2011	8.24
2012	8
2013	7.96
2021	15.59