Year	% of people ages 15 and above
1975	48.9314498901367
1976	49.1546897888184
1977	49.7598495483398
1978	50.371208190918
1979	50.961181640625
1980	51.0383415222168
1981	51.8327293395996
1982	52.7697486877441
1983	53.3884696960449
1984	54.1722984313965
1985	54.8101081848145
1986	55.4405212402344
1987	56.3258094787598
1988	57.0646591186523
1989	57.7493515014648
1990	58.6378898620605
1991	59.123779296875
1992	60.1190795898438
1993	60.9320907592773
1994	61.707691192627
1995	62.5181198120117
1996	63.2525482177734
1997	63.927360534668
1998	66.9112319946289
1999	67.5473480224609
2000	68.2059936523438
2001	68.6700973510742
2002	69.378288269043
2003	70.409912109375
2004	71.1810607910156
2005	70.9275665283203
2006	70.8128509521484
2007	72.0456314086914
2008	72.8475036621094
2009	73.6762008666992
2010	75.2594604492188
2011	75.28125
2012	75.8829193115234
2013	76.3663711547852
2014	77.251350402832
2015	77.9914779663086
2016	78.6065521240234
2017	78.9736099243164
2018	79.194580078125
2019	79.4939804077148
2020	79.9613876342773
2021	80.3580017089844
2022	80.828010559082