Year	Persons (Millions)
1980	17.866
1981	18.194
1982	18.516
1983	18.791
1984	19.069
1985	19.314
1986	19.509
1987	19.725
1988	19.954
1989	20.157
1990	20.401
1991	20.606
1992	20.803
1993	20.995
1994	21.178
1995	21.357
1996	21.525
1997	21.743
1998	21.929
1999	22.092
2000	22.277
2001	22.406
2002	22.521
2003	22.605
2004	22.689
2005	22.770
2006	22.877
2007	22.958
2008	23.037
2009	23.120
2010	23.162
2011	23.225
2012	23.316
2013	23.374
2014	23.434
2015	23.492
2016	23.540
2017	23.571
2018	23.589
2019	23.603
2020	23.561
2021	23.375
2022	23.334
2023	23.320
2024	23.320
2025	23.320
2026	23.320
2027	23.320
2028	23.320
2029	23.320