Year	% (cumulative)
1970	23.0500602722168
2009	88.7415618896484
2010	87.4536819458008
2011	87.129020690918
2012	87.6952209472656
2014	88.8420486450195
2015	88.9231796264648
2016	88.5459518432617
2017	88.6920318603516
2018	88.9692993164062
2019	89.6567077636719
2020	89.8048858642578
2021	87.4644012451172
2022	86.6804580688477