Year	% of relevant age group
1999	98.90629
2000	89.87342
2001	92.61745
2002	89.41236
2003	96.32505
2004	97.17156
2005	101.20805
2006	103.47709
2007	108.90448
2008	101.2631
2009	97.492
2010	94.98807
2011	93.42872
2014	95.53041
2017	95.07193
2018	98.33228