Year	Number
1960	1037147
1961	1060854
1962	1086147
1963	1113706
1964	1143399
1965	1175550
1966	1209885
1967	1245746
1968	1283327
1969	1322681
1970	1363746
1971	1406614
1972	1451413
1973	1497482
1974	1544234
1975	1592962
1976	1643830
1977	1695856
1978	1749258
1979	1804466
1980	1861692
1981	1920818
1982	1981732
1983	2044631
1984	2109429
1985	2176001
1986	2244820
1987	2316220
1988	2390977
1989	2469956
1990	2553746
1991	2642541
1992	2735588
1993	2832575
1994	2933611
1995	3038664
1996	3147401
1997	3259283
1998	3372058
1999	3487755
2000	3608503
2001	3732415
2002	3859466
2003	3989553
2004	4123293
2005	4261269
2006	4403198
2007	4548746
2008	4697542
2009	4849110
2010	5002497
2011	5157147
2012	5312863
2013	5469835
2014	5629004
2015	5788894
2016	5947582
2017	6104579
2018	6259340
2019	6411659
2020	6560498
2021	6704427
2022	6845036
2023	6986185