Year	% (cumulative)
2006	98.9276428222656
2007	98.8262557983398
2008	98.9530715942383
2009	99.7685623168945
2010	99.8078689575195
2011	99.8556365966797
2012	99.8083190917969
2013	99.8322906494141
2014	99.8598480224609
2015	98.5437240600586
2016	97.7616348266602
2017	99.7478179931641
2018	97.9548416137695
2019	97.9749298095703
2020	99.8025970458984
2021	99.8148498535156