Year	Persons (Millions)
1980	9.129
1981	9.444
1982	9.758
1983	10.084
1984	10.419
1985	10.776
1986	11.133
1987	11.511
1988	11.899
1989	12.298
1990	12.721
1991	13.102
1992	13.484
1993	13.865
1994	14.241
1995	14.610
1996	14.973
1997	15.334
1998	15.702
1999	16.091
2000	16.511
2001	16.961
2002	17.438
2003	17.952
2004	18.512
2005	19.121
2006	19.596
2007	20.083
2008	20.581
2009	21.092
2010	21.393