Year	Number
1960	5541766
1961	5498539
1962	5456899
1963	5414847
1964	5370261
1965	5327265
1966	5281469
1967	5234313
1968	5183803
1969	5128878
1970	5061496
1971	4981753
1972	4897996
1973	4809523
1974	4714698
1975	4625987
1976	4533373
1977	4443919
1978	4357973
1979	4274272
1980	4194898
1981	4118594
1982	4041007
1983	3963186
1984	3884720
1985	3807158
1986	3730271
1987	3653104
1988	3561979
1989	3500006
1990	3466314
1991	3427851
1992	3395342
1993	3363016
1994	3319567
1995	3269569
1996	3219771
1997	3168072
1998	3115862
1999	3059960
2000	2996577
2001	2933092
2002	2867027
2003	2800401
2004	2735436
2005	2671686
2006	2611003
2007	2555356
2008	2503383
2009	2454844
2010	2402066
2011	2347623
2012	2295865
2013	2247579
2014	2202165
2015	2158923
2016	2115365
2017	2068303
2018	2020372
2019	1974004
2020	1924485
2021	1868889
2022	1815531
2023	1768566