Year % of relevant age group 1970 136.2342 1971 141.2388 1972 142.4369 1973 142.4753 1974 141.8084 1975 141.5844 1976 137.1522 1977 138.0561 1978 139.0473 1979 151.9733 1980 143.7791 1981 142.1559 1982 141.5463 1983 135.1643 1984 139.0818 1985 133.8919 1986 126.2122 1987 129.35 1988 135.1914 1989 126.535 1990 137.0604 1991 123.0651 1992 122.5463 1993 125.6174 1994 125.369 1995 121.3425 1996 119.4357 1997 119.9716 1998 119.8533 1999 115.9928 2000 117.4019 2001 119.6559 2002 119.1853 2003 116.978 2004 116.962 2005 117.92 2006 113.3844 2007 112.8486 2008 110.4201 2009 107.9289 2010 103.2095 2011 101.0995 2012 97.87364 2013 99.37334 2014 99.6467 2015 100.5959 2016 100.8363 2017 100.5988 2018 100.5323