Year	% of total population
1960	3.08004440009703
1961	3.09429693054992
1962	3.09762922447205
1963	3.09738140124686
1964	3.09308733925956
1965	3.08455479975313
1966	3.07101491961916
1967	3.05116960042749
1968	3.02476729036408
1969	2.99186009411837
1970	2.95263421458495
1971	2.90983607220859
1972	2.86316869768976
1973	2.81201803616003
1974	2.7590761006863
1975	2.70343038312526
1976	2.64553883249948
1977	2.58647801829485
1978	2.52786752775172
1979	2.47215728828934
1980	2.41883403652068
1981	2.36887019010059
1982	2.3234376704453
1983	2.27908471611126
1984	2.23663615279409
1985	2.20007359621833
1986	2.16972567386044
1987	2.14184382970841
1988	2.11781630278961
1989	2.10271464709378
1990	2.09573165125738
1991	2.10106715841733
1992	2.11480191540761
1993	2.13437833908863
1994	2.16421652869467
1995	2.20228176565944
1996	2.24569388375079
1997	2.29204595261186
1998	2.33765653161244
1999	2.38265639893257
2000	2.42654932011359
2001	2.46810710437302
2002	2.50656844258225
2003	2.54124253059111
2004	2.56990191051415
2005	2.5895536201982
2006	2.60133737945751
2007	2.60639998194138
2008	2.60647454798239
2009	2.6035364649408
2010	2.59871888108404
2011	2.5922239567595
2012	2.58482785206659
2013	2.57357038485712
2014	2.55677490582587
2015	2.54681671508332
2016	2.54583426221299
2017	2.54905651458252
2018	2.55953492686611
2019	2.57599713515546
2020	2.58997520856912
2021	2.59446984834862
2022	2.6000557419631
2023	2.62450028728306