Year	%
2008	0.723251027713466
2009	1.27871052608886
2010	1.51981365217834
2011	1.68434907314772
2012	1.51215755076448
2013	1.33872670729875
2014	1.13088790719266
2015	1.0533756114736
2016	1.18473037859688
2017	1.00040357973015
2018	0.746427849824663
2019	0.801131694159603
2020	0.736074194281787
2021	0.525489505428339