Year	Number
1960	2040325
1961	2070240
1962	2100038
1963	2124909
1964	2160174
1965	2206097
1966	2257364
1967	2313349
1968	2365431
1969	2418513
1970	2482688
1971	2553108
1972	2620008
1973	2681834
1974	2747436
1975	2811351
1976	2870147
1977	2930181
1978	2991622
1979	3048938
1980	3074870
1981	3070948
1982	3046367
1983	2994777
1984	2959335
1985	2994605
1986	3073645
1987	3154800
1988	3241995
1989	3333787
1990	3425934
1991	3520603
1992	3613758
1993	3699227
1994	3780310
1995	3870017
1996	3962036
1997	4041024
1998	4114290
1999	4188049
2000	4267334
2001	4345660
2002	4427454
2003	4524064
2004	4636154
2005	4752406
2006	4848157
2007	4922902
2008	4989998
2009	5051623
2010	5104248
2011	5189330
2012	5314665
2013	5486605
2014	5652235
2015	5750321
2016	5831361
2017	5903116
2018	5972158
2019	5999491
2020	6064427
2021	6124415
2022	6215604
2023	6318844