Year	% of relevant age group
1971	103.1457
1972	104.65093
1973	101.12393
1974	99.11449
1975	99.48169
1976	117.82008
1977	103.95983
1978	97.90058
1980	95.22147
1983	91.00209
1985	104.34448
1986	100.56966
1987	99.45844
1988	95.23875
1989	103.60349
1992	86.39831
1993	88.76147
1999	115.30954
2000	112.3349
2004	113.32937
2007	111.12659