Year	Number of People
1960	5140
1961	5433
1962	5697
1963	5949
1964	6218
1965	6525
1966	6887
1967	7293
1968	7917
1969	8552
1970	9197
1971	9852
1972	10533
1973	11199
1974	11741
1975	12177
1976	12493
1977	12715
1978	13013
1979	13618
1980	14684
1981	16207
1982	18237
1983	20627
1984	23166
1985	25712
1986	28202
1987	30677
1988	33145
1989	35642
1990	38170
1991	40587
1992	42965
1993	45353
1994	47824
1995	50401
1996	53223
1997	56140
1998	58869
1999	61005
2000	62290
2001	62612
2002	62104
2003	60948
2004	59411
2005	57725
2006	55913
2007	53988
2008	52144
2009	50592
2010	49498
2011	48960
2012	48941
2013	49275
2014	49715
2015	50078
2016	50315
2017	50473