Year	Number of People
1960	528509
1961	559541
1962	592636
1963	627777
1964	665038
1965	704517
1966	746292
1967	790637
1968	870061
1969	964069
1970	1068306
1971	1184203
1972	1312559
1973	1454157
1974	1610103
1975	1781164
1976	1968806
1977	2173667
1978	2397905
1979	2560919
1980	2719334
1981	2886940
1982	3065089
1983	3253365
1984	3452356
1985	3661410
1986	3881163
1987	4111940
1988	4356633
1989	4578236
1990	4807792
1991	5054588
1992	5317625
1993	5592427
1994	5873136
1995	6154842
1996	6435980
1997	6718378
1998	7006325
1999	7306494
2000	7624779
2001	7962433
2002	8320222
2003	8771267
2004	9265294
2005	9791550
2006	10352972
2007	10950894
2008	11586014
2009	12255418
2010	12960158
2011	13699468
2012	14476048
2013	15290226
2014	16142664
2015	17035226
2016	17968160
2017	18942681