Year	% (cumulative)
1991	52.121208190918
2006	98.5703125
2007	98.5178756713867
2008	98.7898330688477
2009	98.6979217529297
2010	98.681022644043
2011	98.7927551269531
2012	99.0949325561523
2013	99.057258605957
2014	99.2007522583008
2015	99.118278503418
2016	99.1483993530273
2017	99.2063903808594
2018	99.2138366699219
2019	98.8641204833984
2020	99.0342178344727
2021	99.1065292358398
2022	98.9654541015625