Year	% of total population
1960	3.3016811315099437
1961	3.3075629473564443
1962	3.3211734779101194
1963	3.3323033041173087
1964	3.339229697619617
1965	3.341158697844151
1966	3.3384972694738737
1967	3.3305366460107786
1968	3.3210095873003245
1969	3.312434356764132
1970	3.3016686887864224
1971	3.28718773105461
1972	3.2731430646468627
1973	3.262583254579185
1974	3.2546800104027307
1975	3.2489142585541027
1976	3.2477307341057924
1977	3.2495164938708365
1978	3.250536109450444
1979	3.250474286530759
1980	3.240605958558928
1981	3.2248291491904943
1982	3.215689826727111
1983	3.2097527484678188
1984	3.2061277502906593
1985	3.2056026231044896
1986	3.2045812121375983
1987	3.203747625263419
1988	3.204458352680294
1989	3.2041650898613967
1990	3.202328453976485
1991	3.1981446707851737
1992	3.1902577673477195
1993	3.1809648460221616
1994	3.1693338039003427
1995	3.1556540899759153
1996	3.142090328083108
1997	3.1286410992995375
1998	3.114304292355649
1999	3.0989601591742355
2000	3.083719996094398
2001	3.0693859048061074
2002	3.056762798281198
2003	3.0452655551862993
2004	3.0329656905997138
2005	3.0205237091657864
2006	3.0095186079890586
2007	2.9997630989359387
2008	2.9913739693257164
2009	2.9846162061317414
2010	2.97828789924267
2011	2.970061004703793
2012	2.959301274310779
2013	2.9424289861689776
2014	2.91734127222997
2015	2.8995662066100794
2016	2.8935353764641354
2017	2.8910335444018607
2018	2.892692620954503
2019	2.8985285574467876
2020	2.8969565054996886
2021	2.8831463485430118
2022	2.87628861582583
2023	2.884924143774542