Year	Number
1960	1827109
1961	1893505
1962	1964454
1963	2039339
1964	2117673
1965	2199374
1966	2284488
1967	2373280
1968	2465982
1969	2563878
1970	2668943
1971	2782354
1972	2904123
1973	3033443
1974	3169899
1975	3313314
1976	3451561
1977	3585875
1978	3727906
1979	3876950
1980	4033209
1981	4195695
1982	4363304
1983	4535162
1984	4710005
1985	4886725
1986	5065248
1987	5246142
1988	5432217
1989	5637845
1990	5862374
1991	6092650
1992	6328300
1993	6568705
1994	6813327
1995	7064167
1996	7322218
1997	7586769
1998	7851363
1999	8098881
2000	8330187
2001	8557174
2002	8774649
2003	8983181
2004	9188308
2005	9390312
2006	9590427
2007	9789603
2008	9990049
2009	10193879
2010	10402077
2011	10618615
2012	10845584
2013	11077831
2014	11343487
2015	11646213
2016	11956537
2017	12275633
2018	12600637
2019	12929424
2020	13264169
2021	13600535
2022	13944972
2023	14304003