Year	% of relevant age group
1971	99.98092
1972	99.06565
1973	96.85323
1998	106.17225
1999	105.43008
2002	99.97121
2004	101.41202
2011	97.79686
2012	99.28816
2013	98.42649
2014	97.77493
2015	98.79947
2016	99.04046
2017	101.00607