Year	% of total population
1960	3.112450412066533
1961	3.103855933076289
1962	3.0984395217953105
1963	3.0928639377002134
1964	3.0872649995529216
1965	3.0815707725327335
1966	3.0757890682316646
1967	3.0700168043841978
1968	3.065532221476376
1969	3.062271748120123
1970	3.0585568898291067
1971	3.0543698579616794
1972	3.0507583304787773
1973	3.0489412882176845
1974	3.048026378198071
1975	3.047354948437227
1976	3.049560992425285
1977	3.053531213543115
1978	3.0581100674160355
1979	3.063288385736976
1980	3.0609466112243715
1981	3.054234362064814
1982	3.050876270355424
1983	3.0458001879690184
1984	3.0407652731912207
1985	3.038978947300373
1986	3.03633063421126
1987	3.035516332720624
1988	3.0329634866292174
1989	3.0268037453301364
1990	3.022141055552706
1991	3.018956068205686
1992	3.0154520865089847
1993	3.009316501299015
1994	2.9994365171720654
1995	2.9879033995159587
1996	2.9790349808601855
1997	2.9712405686438768
1998	2.962051121523405
1999	2.9534426096642785
2000	2.9474481464570506
2001	2.94293254123587
2002	2.9389090827956137
2003	2.9346464020478598
2004	2.9302533061245097
2005	2.9268328661351473
2006	2.924153431070751
2007	2.921860916149576
2008	2.920004567828646
2009	2.9208500308945267
2010	2.926350262659351
2011	2.9352750273746073
2012	2.9453664227217176
2013	2.9534100451630745
2014	2.959165445573779
2015	2.9681570823260732
2016	2.983465077908081
2017	3.002265236691648
2018	3.0233301772555046
2019	3.0455947944715698
2020	3.0570797706469732
2021	3.050688535950917
2022	3.041767149877922
2023	3.0471974614162685