Year	% (cumulative)
2001	25.2620906829834
2006	32.265998840332
2011	40.6418304443359
2012	39.6707916259766
2014	32.8626899719238
2015	32.2155113220215
2016	34.0635299682617
2017	35.4922943115234
2018	37.0148887634277
2019	37.6027984619141
2020	38.6430892944336