Year % of relevant age group 1971 31.8127098083496 1972 34.9243392944336 1973 38.4438514709473 1974 47.3892517089844 1975 50.212158203125 1976 47.0915908813477 1977 43.9062805175781 1978 44.5284805297852 1979 45.7905006408691 1980 45.6087417602539 1981 46.74951171875 1982 47.2262992858887 1983 48.4346313476562 1984 48.6188697814941 1985 48.4610900878906 1986 48.2612991333008 1987 50.7938385009766 1988 52.6529808044434 1989 52.691291809082 1990 54.8294792175293 1991 55.6285781860352 1992 58.0837287902832 1993 58.1723785400391 1994 60.5756492614746 1995 64.2152404785156 1996 61.4876289367676 1997 60.4157791137695 1998 60.7080383300781 1999 59.8333396911621 2000 57.8938407897949 2001 60.2340812683105 2002 62.3242301940918 2003 65.4013824462891 2004 68.2907028198242 2005 64.4458389282227 2006 83.8619079589844 2007 80.6764068603516 2008 78.1830596923828 2009 77.6428298950195 2010 79.7661972045898 2011 80.0388336181641 2012 79.9042892456055 2013 81.1170120239258 2014 80.4921722412109 2015 79.3446273803711 2016 81.1535415649414 2022 74.5931167602539 2023 71.1334915161133