Year % of relevant age group 1970 40.387279510498 1971 38.5212707519531 1972 39.2127799987793 1973 48.1225891113281 1974 53.8918418884277 1975 57.6835403442383 1976 59.5888404846191 1977 59.3480796813965 1978 59.41748046875 1979 58.5545692443848 1980 60.5290603637695 1981 60.7696189880371 1982 62.494010925293 1983 63.9321594238281 1984 64.0960083007812 1985 65.1493911743164 1986 66.6072616577148 1987 64.2921371459961 1988 67.7239532470703 1989 64.8775482177734 1990 65.1111068725586 1991 62.8975601196289 1992 63.739990234375 1993 62.2057914733887 1994 63.2409286499023 1995 66.7795791625977 1996 64.156852722168 1997 65.7429504394531 1998 66.650749206543 1999 65.537712097168 2000 66.0936813354492 2001 62.2842407226562 2002 64.331657409668 2003 63.8376884460449 2004 64.8619079589844 2005 67.6669616699219 2006 67.0549774169922 2007 70.4123001098633 2009 78.1740570068359 2010 85.2765274047852 2011 85.2851104736328 2012 85.838020324707 2013 86.7108383178711 2014 87.8140487670898 2015 93.61572265625 2016 99.5820693969727 2017 102.627220153809 2018 102.443962097168 2019 100.767379760742