Year	Persons (Millions)
1980	15.553
1981	15.763
1982	15.962
1983	16.148
1984	16.322
1985	16.482
1986	16.645
1987	16.811
1988	16.980
1989	17.151
1990	17.326
1991	17.536
1992	17.737
1993	17.925
1994	18.094
1995	18.243
1996	18.367
1997	18.471
1998	18.565
1999	18.663
2000	18.778
2001	18.912
2002	19.062
2003	19.224
2004	19.387
2005	19.545
2006	19.696
2007	19.842
2008	19.984
2009	20.124
2010	20.262
2011	20.398
2012	20.425
2013	20.585
2014	20.778
2015	20.970
2016	21.203
2017	21.444
2018	21.670
2019	21.803
2020	21.919
2021	22.156
2022	22.396