Year	%
1996	23.17
1999	19.62
2000	19.37
2001	9.98
2002	10.26
2003	10.26
2004	11.5
2006	10.79
2007	11.11
2010	9.49
2011	9.47
2012	9.4
2013	9.38
2020	8.45
2021	8.44