Year	% (cumulative)
1972	17.2001895904541
1982	25.4286098480225
1983	13.5681104660034
2004	39.464900970459
2006	39.464900970459
2007	39.6013603210449
2009	40.1291618347168
2010	40.4851417541504
2011	41.8664588928223
2012	41.5391311645508
2013	42.2092895507812
2014	43.3709106445312
2015	43.979621887207
2016	31.1528205871582
2017	32.0229606628418
2018	32.9430122375488
2019	32.898120880127
2020	33.0970077514648
2021	33.7175941467285
2022	34.1323280334473