Year % of relevant age group 1991 94.8227310180664 1998 83.8993072509766 1999 77.0991287231445 2000 74.3830184936523 2002 78.5274124145508 2003 81.9762573242188 2004 86.7293167114258 2015 96.1811294555664 2016 96.9955062866211 2018 99.2211227416992 2019 98.8295974731445 2020 97.5960311889648 2021 98.6489562988281