Year	% (cumulative)
1972	7
2005	6.75866985321045
2006	23.3460502624512
2007	20.3912220001221
2008	23.0314903259277
2009	23.2996196746826
2010	23.878719329834
2011	24.2565803527832
2012	25.6495094299316
2013	26.0706100463867
2014	27.7178897857666
2015	25.4954242706299
2016	51.1506538391113
2017	27.2532901763916
2018	8.95104026794434
2019	11.5675497055054
2021	26.7907199859619