Year	% of working-age population
1960	3.673012075581993
1961	3.625908317019199
1962	3.5578043163164588
1963	3.4590573322413674
1964	3.3632426992621216
1965	3.2698032345646695
1966	3.247293406766715
1967	3.282459607447202
1968	3.3042978234016274
1969	3.3124205234729978
1970	3.312179229289869
1971	3.2620730399772433
1972	3.1682598417103502
1973	3.079838580372718
1974	3.004483328980587
1975	2.9384818974585185
1976	2.796937638847807
1977	2.6003529693730076
1978	2.4316910853688234
1979	2.2943688795230957
1980	2.1967044151258355
1981	2.105554801272053
1982	2.006391805866802
1983	1.9157088122605364
1984	1.8712321532837215
1985	1.8524097322381499
1986	1.9028977766249546
1987	2.043475392531996
1988	2.1986441362992286
1989	2.365936033971473
1990	2.548986041743626
1991	2.8110524107578625
1992	2.939492174467301
1993	2.820280974939586
1994	2.371727461476165
1995	2.040715886523401
1996	1.9950208082342349
1997	2.0534284386640613
1998	2.115433215692639
1999	2.176840666519266
2000	2.231329589138724
2001	2.272641624140258
2002	2.2959537841074398
2003	2.3007227263135683
2004	2.289058486546985
2005	2.278649878474443
2006	2.288169189662363
2007	2.311807433613093
2008	2.337822604688502
2009	2.3631812867955664
2010	2.3974368766702536
2011	2.4525683334710484
2012	2.5346305792846895
2013	2.6545608016708693
2014	2.8491469984338194
2015	3.0904291963327726
2016	3.374546231465758
2017	3.7509504990660836
2018	4.1529951328574795
2019	4.662580960713457
2020	5.3089172120513854
2021	5.989701643582781
2022	6.631626569983472
2023	7.315428626292338