Year	% of people ages 15 and above
1975	36.0393409729004
1976	36.0442504882812
1977	36.6957015991211
1978	37.343921661377
1979	37.9800491333008
1980	38.5959014892578
1981	38.6315689086914
1982	39.8255500793457
1983	40.4792213439941
1984	41.1337013244629
1985	41.7856597900391
1986	42.4403686523438
1987	43.0980491638184
1988	43.8453712463379
1989	44.6124305725098
1990	45.3591995239258
1991	45.7895584106445
1992	47.0863304138184
1993	48.0814590454102
1994	48.8493804931641
1995	49.6404800415039
1996	50.4491996765137
1997	51.2601699829102
1998	56.1029396057129
1999	56.8763084411621
2000	57.6505813598633
2001	58.0987892150879
2002	59.2031288146973
2003	60.0957794189453
2004	60.8761711120605
2005	60.6296691894531
2006	60.1619682312012
2007	61.7019805908203
2008	62.7935791015625
2009	63.4656791687012
2010	66.0360565185547
2011	66.5059661865234
2012	67.3077621459961
2013	68.0545272827148
2014	68.7931671142578
2015	69.7571563720703
2016	71.1049270629883
2017	71.7903594970703
2018	72.0815124511719
2019	71.9427871704102
2020	72.6586074829102
2021	73.4224700927734
2022	74.1877593994141