Year	%
1996	24.25
1999	21.7
2000	21.5
2001	13.75
2002	13.89
2003	13.86
2004	14.27
2006	13.23
2007	13.81
2010	10.93
2011	10.9
2012	11.03
2013	12.59
2020	11.92
2021	11.91