Year	% of cohort
1977	58.5528717041016
1978	55.3828582763672
1979	54.9713287353516
1980	35.0357894897461
1981	55.5956611633301
1982	54.1701889038086
1983	54.4942283630371
1984	54.3310012817383
1985	54.6534194946289
1986	54.5214805603027
2016	99.5587692260742
2017	99.3063201904297
2018	99.3577575683594
2019	100
2020	99.3278121948242
2021	99.4043197631836