Year	% (cumulative)
1991	11.8472700119019
2001	40.5042686462402
2006	87.7409133911133
2007	88.0607452392578
2008	89.1797637939453
2009	90.0367584228516
2010	89.8620223999023
2011	89.8108291625977
2012	90.6377868652344
2013	91.1007766723633
2014	89.949592590332
2015	91.1446990966797
2016	91.6046981811523
2017	91.161376953125
2018	91.5507583618164
2019	91.3419723510742
2020	92.4989395141602
2021	92.9139404296875
2022	92.8935470581055