Year	%
2001	12.38
2002	9.5
2003	9.49
2005	8.8
2006	8.39
2007	7.87
2008	7.94
2009	7.9
2010	7.91
2011	7.93
2012	7.91
2014	7.73
2016	7.07
2018	7.3
2020	7.3
2021	6.94