Year	%
2001	8.89
2002	9.61
2005	7.75
2007	7.31
2008	7.39
2009	5.02
2010	4.41
2011	3.78
2013	7.51
2015	2.58
2016	2.61
2017	2.68
2018	2.63
2021	2.92