Year	%
1996	17.45
1999	15.83
2000	15.04
2001	12.5
2002	11.68
2003	11.76
2006	3.75
2007	9.03
2010	10.8
2011	10.25
2012	7.55
2013	7.55
2015	7.15
2016	9.19
2017	8.93
2018	8.92
2019	8.84
2020	8.97
2021	9.06