Year	% of total population
1960	57.6229951111828
1961	57.6428575031399
1962	57.9944102013825
1963	58.3682482211733
1964	58.735534949652
1965	59.0754432897677
1966	59.3833424889891
1967	59.6743641418205
1968	59.9755396456964
1969	60.3096474519527
1970	60.6824395603024
1971	61.0901230343561
1972	61.5254612848111
1973	62.0031058644899
1974	62.3069451189898
1975	62.5872794998314
1976	63.148282855681
1977	63.7912201750724
1978	64.3791558417109
1979	64.8757724901561
1980	65.2625574557191
1981	65.5380036963197
1982	65.6122213013859
1983	65.4641069603676
1984	65.3004084462715
1985	65.2433357388091
1986	65.2644343129389
1987	65.3286032252062
1988	65.3998763067384
1989	65.4613438272617
1990	65.5191502853519
1991	65.5915916254151
1992	65.6413069095333
1993	65.5760300876952
1994	65.5435410755479
1995	65.7047775584331
1996	66.0074301878796
1997	66.4005112145747
1998	66.8453305053244
1999	67.3175719192786
2000	67.803582963129
2001	68.2576205134583
2002	68.6090178676423
2003	68.9343729694607
2004	69.3346664251788
2005	69.7921482959304
2006	70.2746632203881
2007	70.7404413743525
2008	71.1550819762173
2009	71.4981178677449
2010	71.7542183200546
2011	71.8409796294776
2012	71.7533038809604
2013	71.603218081722
2014	71.4145769523235
2015	71.1813135907284
2016	70.9173236250831
2017	70.647269435501
2018	70.3874860419533
2019	70.1239749958599
2020	69.839528030273
2021	69.5378029686832
2022	69.2418268326077
2023	68.9562968500275