Year	%
2000	2.89
2006	1.34
2008	1.56
2009	1.35
2010	1.5
2011	1.26
2012	1.48
2013	1.37
2014	1.25
2015	1.2
2016	1.01
2017	0.88
2018	1.27
2019	1.16
2020	1.38
2021	2