Year	% of relevant age group
1971	105.74633
1972	104.79185
1973	106.08808
1975	128.89973
1988	100.7591
1989	103.25774
1990	91.17381
1991	95.31045
1992	94.77365
1993	92.87624
1994	94.26107
1995	91.37868
1996	97.73034
1998	106.90739
1999	108.86536
2000	111.36776
2001	110.9623
2002	116.42774
2003	149.26389
2004	166.29601
2005	178.78513
2006	175.28613
2007	165.89951
2008	173.16988
2009	182.80456
2010	177.79542
2011	177.56031
2012	175.5446
2013	175.32403
2014	182.0348
2015	177.58331
2016	172.72947
2018	155.52513