Year	%
2007	5.6
2008	3.68
2009	3.48
2010	3.36
2011	3.26
2012	2.63
2013	2.11
2014	2.05
2015	2.05
2016	1.78
2017	1.77
2018	1.8
2019	1.51
2020	1.74
2021	1.97