Year	%
2001	9.02
2002	7.62
2005	4.5
2007	4.46
2008	4.21
2009	4.92
2010	4.32
2011	4.59
2013	5.84
2015	6.62
2016	6.96
2017	6.92
2018	7.03
2021	8.28