Year	%
2000	1.1361438164032223
2001	1.0994575940723619
2002	1.0439518757446948
2003	0.995726906847586
2004	0.9638010896561867
2005	0.9271684402334397
2006	0.8744251893147857
2007	0.8571752819377831
2008	0.8396218823891863
2009	0.8142806565351354
2010	0.7784586631648039
2011	0.749683609027951
2012	0.7214707765422367
2013	0.7051337867703469
2014	0.684168000294368
2015	0.6627153006940864
2016	0.6482627674003599
2017	0.6338455872925216
2018	0.6213305692627611
2019	0.6092968798239845
2020	0.5847850694179699