Year % of relevant age group 1970 23.1294002532959 1971 23.0349903106689 1972 23.26003074646 1973 23.3557891845703 1974 23.391300201416 1975 23.3906898498535 1976 23.453929901123 1977 23.6438503265381 1978 23.7577800750732 1979 23.7979602813721 1980 24.0047607421875 1981 24.1446304321289 1982 24.3345394134521 1983 24.5104103088379 1984 24.754940032959 1985 24.9619693756104 1986 25.0520401000977 1987 24.775369644165 1988 24.6275100708008 1989 24.5251693725586 1990 24.5487594604492 1991 24.7482604980469 1992 24.583179473877 1993 25.0195293426514 1994 25.2431602478027 1995 26.2188701629639 1996 26.5579109191895 1997 26.7525501251221 1998 27.0372104644775 1999 27.115779876709 2000 27.3745803833008 2001 28.5174407958984 2002 30.7327404022217 2003 31.2077407836914 2004 31.7217292785645 2005 32.8146286010742 2006 34.0778617858887 2007 35.5248985290527 2008 37.3472290039062 2009 38.5966606140137 2010 39.8269309997559 2011 40.7618293762207 2012 41.2620086669922 2013 41.712718963623 2014 42.3927383422852 2015 43.0796585083008 2016 43.2841606140137 2017 43.4578399658203 2018 43.6708183288574 2019 43.8253211975098 2020 44.3551483154297 2021 44.8472290039062