Year % of relevant age group 1991 87.4698715209961 1998 81.4121475219727 1999 75.1583404541016 2000 73.198860168457 2002 76.3339233398438 2003 80.1458587646484 2004 86.3521194458008 2015 96.1466064453125 2016 94.9845962524414 2018 96.3931732177734 2019 96.6361312866211 2020 95.4806594848633 2021 97.0137481689453