Year	% of people ages 15 and above
1980	44.7416915893555
1981	44.9217414855957
1982	45.3152885437012
1983	45.6387901306152
1984	45.9968185424805
1985	46.3652496337891
1986	46.71875
1987	47.2522010803223
1988	48.0617713928223
1989	48.6307716369629
1990	49.2320098876953
1991	49.7409782409668
1992	50.6021614074707
1993	51.4832801818848
1994	52.279468536377
1995	52.8944702148438
1996	53.5342903137207
1997	54.2851600646973
1998	55.5736808776855
1999	56.3768692016602
2000	55.770580291748
2001	56.6594390869141
2002	57.4133911132812
2003	58.0442581176758
2004	59.141040802002
2005	58.8060684204102
2006	59.3524017333984
2007	57.8422088623047
2008	58.5226707458496
2009	58.9231986999512
2010	60.6482009887695
2011	60.7924880981445
2012	61.7272300720215
2013	62.4830284118652
2014	63.2408714294434
2015	64.1573791503906
2016	65.5783081054688
2017	66.3929290771484
2018	66.9653091430664
2019	67.8033065795898
2020	68.0763168334961
2021	68.5195922851562
2022	68.8382568359375