Year	% (cumulative)
2006	99.3701019287109
2007	99.3049850463867
2008	99.3339996337891
2009	99.845703125
2010	99.8763275146484
2011	99.8957824707031
2012	99.8613586425781
2013	99.8679809570312
2014	99.9261779785156
2015	98.9113388061523
2016	98.0457000732422
2017	99.7923812866211
2018	98.2391510009766
2019	98.1913833618164
2020	99.8049087524414
2021	99.8378295898438