Year	%
2001	5.7
2002	8.02
2005	6.83
2007	6.57
2008	6.61
2009	4.23
2010	3.47
2011	2.74
2013	5.77
2015	1.36
2016	1.38
2017	1.4
2018	1.4
2021	1.72