Year	Number of People
1960	218385
1961	221560
1962	225946
1963	229959
1964	234207
1965	238541
1966	241914
1967	244349
1968	246598
1969	249419
1970	252255
1971	256528
1972	261780
1973	266787
1974	272384
1975	277458
1976	280890
1977	283399
1978	285895
1979	288518
1980	291473
1981	293802
1982	294251
1983	294534
1984	295042
1985	295818
1986	297355
1987	299492
1988	301882
1989	305040
1990	309096
1991	313973
1992	319732
1993	325361
1994	332341
1995	338722
1996	343082
1997	347217
1998	352047
1999	359223
2000	367434
2001	374603
2002	380583
2003	387241
2004	394773
2005	402818
2006	411237
2007	419557
2008	429035
2009	438935
2010	448892
2011	460842
2012	473864
2013	486709
2014	500042
2015	513663
2016	526490
2017	543862