Year % of relevant age group 1971 100.95338 1972 102.26772 1973 104.96655 1974 106.29128 1975 101.62871 1976 97.56067 1977 96.04144 1978 96.17686 1979 98.32944 1980 98.52909 1981 103.93809 1982 99.41568 1983 98.89814 1984 95.99129 1985 96.01832 1986 96.83233 1987 95.75383 1988 93.31568 1989 94.41615 1992 89.14578 1998 97.94141 1999 107.32613 2000 103.12085 2001 103.96658 2002 102.68839 2003 101.24601 2004 101.05103 2005 97.03742 2006 96.65444 2007 98.93801 2010 102.5724 2011 101.82625 2012 102.33052 2013 101.22958 2014 99.15379 2015 103.26313 2016 101.1141 2017 99.243