Year	%
1996	40.33
1997	15.28
1998	24.94
1999	16.27
2000	7.32
2001	7.01
2002	20.03
2003	20.36
2007	10.7
2010	17.53
2011	5.99
2012	13.71
2015	6.59
2016	5.48
2021	9