Year	%
2001	5.8
2002	7.88
2005	6.03
2007	5.63
2008	5.51
2009	3.56
2010	2.79
2011	2.36
2013	4.82
2015	1.29
2016	1.37
2017	1.41
2018	1.44
2021	1.72