Year	%
2000	0.9770936323213452
2001	0.9320819041277548
2002	0.889562981518843
2003	0.8657361981568424
2004	0.8272747763756181
2005	0.7815056206228678
2006	0.7262137313947017
2007	0.6881388768059596
2008	0.6737963021231568
2009	0.668187424653065
2010	0.5891364487668292
2011	0.5562465285428483
2012	0.5264014900043293
2013	0.47846804023650824
2014	0.4283809665625556
2015	0.3877730522371782
2016	0.3534499162926331
2017	0.3289957063631713
2018	0.31920730012146226
2019	0.30272845290030204
2020	0.2959807447391455