Year	% of total population
1960	2.95798602620845
1961	2.97890893397678
1962	3.10572774347936
1963	3.20872489673506
1964	3.28862636508278
1965	3.34171741948317
1966	3.36806777596175
1967	3.37578602659551
1968	3.3724563300829
1969	3.34767482491451
1970	3.27774157094739
1971	3.13501306829519
1972	2.97526599670455
1973	2.85662418232189
1974	2.76771933885534
1975	2.70716077261875
1976	2.67128486408301
1977	2.65813224631924
1978	2.66769999956554
1979	2.69357636439028
1980	2.60710155554725
1981	2.43822965268983
1982	2.35648045733262
1983	2.33512739512563
1984	2.34002485218928
1985	2.37107892656187
1986	2.41198590119643
1987	2.45685606653637
1988	2.50138412943524
1989	2.55098398788529
1990	2.6073054270407
1991	2.66718061126944
1992	2.72922884965241
1993	2.79060759178577
1994	2.84900342579672
1995	2.90786836351934
1996	2.97064121155058
1997	3.03284580521923
1998	3.09305929574374
1999	3.14948671158051
2000	3.1935848878915
2001	3.22263879858446
2002	3.2420388811699
2003	3.25596260655541
2004	3.26117511358758
2005	3.25654129752961
2006	3.24845642066575
2007	3.23801939572268
2008	3.21951902909827
2009	3.19336740096355
2010	3.16640624673139
2011	3.14067142256025
2012	3.11833248308317
2013	3.10860469257034
2014	3.11872187325182
2015	3.13822837559942
2016	3.16440558866175
2017	3.2061912375419
2018	3.26225495710074
2019	3.33205487291691
2020	3.40550754160106
2021	3.47676394121572
2022	3.55488739269678
2023	3.64946822407899