Year	% of working-age population
1960	65.45783042765608
1961	66.34283522945161
1962	67.68131808963153
1963	69.52660628361166
1964	72.07628454344857
1965	75.98476981654552
1966	80.50191407911527
1967	83.75194005440497
1968	85.36481877376504
1969	86.30130441014859
1970	87.094770835921
1971	87.62408400695023
1972	87.74707617356596
1973	87.41445786560816
1974	87.16019383965428
1975	87.56467631603704
1976	88.20702209300802
1977	88.44413283192046
1978	88.71787227170523
1979	89.10284357893717
1980	89.16461540273475
1981	88.91682763192485
1982	88.32519352802419
1983	87.37014762165117
1984	86.5479230242262
1985	87.01467564407531
1986	88.61445428307778
1987	90.20625950256749
1988	91.33927158666778
1989	92.05345985983085
1990	92.75804050423278
1991	93.4024117450441
1992	93.60248033071076
1993	93.23433679335416
1994	92.17126295036641
1995	90.09858876786826
1996	87.11281686942893
1997	83.67104872986063
1998	79.86296336617495
1999	75.68998853023103
2000	71.32565658857565
2001	67.02938898034279
2002	62.96143378846736
2003	59.125925180001005
2004	55.46595561301444
2005	51.9992731803551
2006	48.40020012978714
2007	44.72908658673853
2008	41.489160255591614
2009	38.84732566717654
2010	36.7634946781551
2011	35.16066554157369
2012	33.977239884393065
2013	33.11123905714563
2014	32.28321152406258
2015	31.48172066722321
2016	30.848502156954112
2017	30.333393798570143
2018	29.90784379967103
2019	29.615117268328294
2020	29.51431309769558
2021	29.453177013981357
2022	29.480502622150684
2023	29.59620450583872