Year	%
2001	1.18
2002	1.3
2004	1.24
2005	1.08
2006	1.19
2007	1.19
2008	1.15
2009	1.12
2010	1.05
2011	1.46
2012	4.26
2013	0.64
2014	0.78
2015	0.71
2016	0.76
2017	1.18
2018	0.24
2019	0.8
2020	0.8
2021	0.7