Year	Number
1960	4244231
1961	4346361
1962	4451850
1963	4561585
1964	4674202
1965	4787102
1966	4899011
1967	5010160
1968	5121194
1969	5232847
1970	5345375
1971	5503516
1972	5666621
1973	5821802
1974	5970074
1975	6110467
1976	6242288
1977	6364729
1978	6478127
1979	6582877
1980	6680590
1981	6781029
1982	6878146
1983	6981725
1984	7089461
1985	7199021
1986	7311203
1987	7427217
1988	7548848
1989	7673056
1990	7796158
1991	7893508
1992	7961318
1993	8019798
1994	8070360
1995	8116027
1996	8159345
1997	8206584
1998	8259320
1999	8312423
2000	8365215
2001	8416167
2002	8465223
2003	8505469
2004	8535826
2005	8562116
2006	8583640
2007	8601178
2008	8616795
2009	8632201
2010	8648121
2011	8664868
2012	8683386
2013	8698029
2014	8709909
2015	8719925
2016	8725410
2017	8726424
2018	8726939
2019	8726192
2020	8723461
2021	8700275
2022	8678348
2023	8678273