Year	% (cumulative)
1976	0.764029979705811
2006	10.32546043396
2011	10.9343595504761
2015	9.94229984283447
2016	7.7949800491333
2017	13.6061019897461
2018	10.0408096313477
2019	11.6256904602051
2020	11.5809001922607