Year % of working-age population 1960 57.98492583519949 1961 58.810339934962165 1962 59.14416858332723 1963 59.282844930320955 1964 59.323035725218496 1965 59.340097581717124 1966 59.39475304465812 1967 59.46269573825752 1968 59.4730266392166 1969 59.35073950542041 1970 59.11752487115179 1971 58.8826403707669 1972 58.66007804108321 1973 58.37903590886674 1974 58.07748585584707 1975 57.74030556640024 1976 57.358179564312294 1977 57.013952351789804 1978 56.65407120355153 1979 56.27128472645762 1980 55.79117091622303 1981 55.101736333714875 1982 54.30847924707141 1983 53.535432865470035 1984 52.97094047911756 1985 52.68384332354122 1986 52.54240365255737 1987 52.45612730747428 1988 52.440894866391766 1989 52.45867952383835 1990 52.48197967354638 1991 52.487864169527064 1992 52.51765474626221 1993 52.5729306944713 1994 52.532020668245075 1995 52.38150633694309 1996 52.11204150283585 1997 51.71177551483472 1998 51.159369068223704 1999 50.5248063870898 2000 49.959519561892584 2001 49.45112456095984 2002 48.99568134770373 2003 48.63668205259922 2004 48.388176867672016 2005 48.18985171765475 2006 47.99502164575274 2007 47.76429748227402 2008 47.55553846206189 2009 47.465150684448446 2010 47.42805274744457 2011 47.59928400343201 2012 48.07583424401985 2013 48.675521678372256 2014 49.38146791694541 2015 50.118023828284805 2016 50.82647795884605 2017 51.53008044000801 2018 52.21497605692122 2019 52.883073726403644 2020 53.46942988613164 2021 53.93202782967505 2022 54.37354199897412 2023 54.826272302749146