Year	% of total population
1960	38.4454165848007
1961	39.3250578780403
1962	39.9424729901485
1963	40.4205533577481
1964	40.7854164803532
1965	40.9107907831508
1966	40.8339641018996
1967	40.6887369023809
1968	40.4881945882129
1969	40.2828301386082
1970	40.1072277269738
1971	39.9760624319229
1972	39.8592870960019
1973	39.6814506438434
1974	39.4267778923144
1975	39.1281363209446
1976	38.8217627444874
1977	38.509695077623
1978	38.1942529354052
1979	37.9043067673194
1980	37.6386165074912
1981	37.4367662127997
1982	37.3293183643306
1983	37.2933291027883
1984	37.2702660009753
1985	37.2497494680925
1986	37.2802556532392
1987	37.3521552935454
1988	37.4392865664701
1989	37.5462053972471
1990	37.7170950505764
1991	37.8838507446207
1992	38.0803861674716
1993	38.4006929578458
1994	38.5400498731542
1995	38.4376571863192
1996	38.2164580737306
1997	37.8038112555626
1998	37.2544531793174
1999	36.6003192105779
2000	35.8911687552759
2001	35.1391283330697
2002	34.3378575933852
2003	33.5355804277298
2004	32.756947580708
2005	32.0550282600217
2006	31.4687946999925
2007	31.0380979100963
2008	30.7732701764035
2009	30.6469144832414
2010	30.6682314041388
2011	30.8486401803349
2012	31.1680828870921
2013	31.5674807152998
2014	32.002492081107
2015	32.4666581741056
2016	32.9175569375998
2017	33.3257504724721
2018	33.7323347839385
2019	34.1046213393134
2020	34.3532106621858
2021	34.4645818267829
2022	34.4460693964956
2023	34.301029011495