Year	% of total population
1960	78.42838769833638
1961	77.95971137001192
1962	77.50182557364764
1963	77.0636748671136
1964	76.61744442053781
1965	76.4021235291478
1966	76.17975636681568
1967	75.94095645623202
1968	75.6972622009467
1969	75.45337220503602
1970	75.21066544656925
1971	74.95557616389833
1972	74.66628147797734
1973	74.34379975616163
1974	73.98278706150859
1975	73.67001155898333
1976	73.30320593725315
1977	72.93232040499501
1978	72.47072044228476
1979	71.91430986077253
1980	71.33801969711374
1981	70.75173689668173
1982	70.20560524771325
1983	69.70007582783508
1984	69.17991131380874
1985	68.65739007637657
1986	68.13552230499836
1987	67.61856417183506
1988	67.10385479826844
1989	66.59670164855756
1990	66.07256991665366
1991	65.56561570683185
1992	65.06636050704388
1993	64.57020605274204
1994	64.0718522844479
1995	63.577349807298305
1996	63.08751751675949
1997	62.59152702240062
1998	62.09055863888781
1999	61.5893587532022
2000	61.078460510815276
2001	60.51607260644039
2002	59.9126574035161
2003	59.30726296809674
2004	58.69475453636186
2005	58.077023088950014
2006	57.470077433786514
2007	56.87767929167757
2008	56.27054124896493
2009	55.665738520802826
2010	55.06434551464991
2011	54.49205229570109
2012	53.93042672665886
2013	53.361618059089224
2014	52.78600749367744
2015	52.20602618951593
2016	51.634260566028374
2017	51.066842335317105
2018	50.50427604168449
2019	49.950845609265464
2020	49.4127038498074
2021	48.88510095827519
2022	48.37678780301265
2023	47.86690138449936