Year	%
2007	4.28
2008	2.63
2009	2.72
2010	2.74
2011	2.91
2012	2.51
2013	1.72
2014	1.69
2015	1.65
2016	1.2
2017	1.21
2018	1.15
2019	0.68
2020	1.2
2021	1.22