Year % of relevant age group 1972 108.08967 1973 103.90927 1974 108.17102 1975 105.54017 1976 101.46602 1977 104.93463 1978 100.87719 1979 32.34736 1980 97.62079 1981 96.14432 1982 88.83108 1983 98.90261 1984 101.86821 1986 108.97221 1997 109.57151 1998 113.82069 1999 110.50894 2000 103.8961 2001 102.491 2002 105.56174 2003 108.93557 2004 110.07072 2005 112.32838 2006 115.62589 2007 109.6719 2008 107.38832 2009 101.2987 2010 103.35766 2011 108.97207 2012 107.81108 2013 107.17365 2014 100.93429 2015 107.6131 2016 105.506 2017 99.13588 2018 100.08611