Year	% (cumulative)
1971	4.80000019073486
2005	25.6183700561523
2006	25.1745624542236
2007	28.3786201477051
2008	27.9134693145752
2009	28.8464908599854
2010	28.9582595825195
2011	28.6670093536377
2012	29.155309677124
2013	27.6356201171875
2014	28.3034801483154
2015	29.169469833374
2016	30.068639755249
2017	30.9827938079834
2018	31.8952693939209
2019	33.6448822021484
2020	35.663200378418
2021	37.153507232666
2022	38.4872360229492