Year	% of cohort
1973	33.07046597608813
1986	50.58666101163579
1987	57.4780807495117
1994	54.9707984924316
1999	60.479427752519406
2000	58.73557696786147
2001	64.00337968222426
2013	80.15576262232953
2015	88.0091826025607
2016	87.00956228600295
2019	99.41244339766077
2020	99.8849563598633