Year % of relevant age group 1975 26.7448196411133 1976 26.8483505249023 1977 27.1000499725342 1978 27.2466201782227 1979 27.2279796600342 1980 27.5113792419434 1981 27.7604293823242 1982 27.9349899291992 1983 28.0417003631592 1984 28.1982803344727 1985 28.3228092193604 1986 28.2787399291992 1987 27.9666595458984 1988 27.8534507751465 1989 27.7027797698975 1990 27.789249420166 1991 27.8949794769287 1992 27.6079502105713 1993 28.0786399841309 1994 28.2356605529785 1995 29.2878704071045 1996 29.5514507293701 1997 29.7440605163574 1998 30.0565795898438 1999 30.0001392364502 2000 30.1564197540283 2001 31.4577102661133 2002 33.9268989562988 2003 34.5268898010254 2004 35.1868896484375 2005 36.3571701049805 2006 37.670539855957 2007 39.1902618408203 2008 41.1917610168457 2009 42.3098793029785 2010 43.3750190734863 2011 44.1708297729492 2012 44.3969612121582 2013 44.6067390441895 2014 45.4942512512207 2015 45.8681716918945 2016 45.7917098999023 2017 45.6686897277832 2018 45.6387100219727 2019 45.5476303100586 2020 45.8403396606445 2021 46.3954315185547