Year	% (cumulative)
1970	4.19999980926514
1978	4.40000009536743
1988	6.97295999526978
2002	12.5590600967407
2006	16.9519844055176
2007	17.9205684661865
2008	18.7911205291748
2009	20.4185905456543
2010	22.0893707275391
2011	23.2016105651855
2012	23.9512691497803
2013	25.0821208953857
2014	26.244119644165
2015	27.0772857666016
2016	27.8843402862549
2017	29.0648078918457
2018	29.8268737792969
2019	30.6155967712402
2020	31.5305805206299
2021	31.9976005554199
2022	32.44482421875