Year	Number
1960	867819
1961	919143
1962	1006495
1963	1102388
1964	1207834
1965	1323318
1966	1450338
1967	1589889
1968	1743456
1969	1911774
1970	2097042
1971	2300739
1972	2525060
1973	2771102
1974	3018515
1975	3237843
1976	3473802
1977	3726617
1978	3998626
1979	4290921
1980	4605492
1981	4928007
1982	5241781
1983	5576546
1984	5934264
1985	6314964
1986	6721833
1987	7156148
1988	7620473
1989	8114875
1990	8643522
1991	9153318
1992	9564591
1993	9993241
1994	10441846
1995	10910707
1996	11401437
1997	11912925
1998	12448251
1999	13007775
2000	13593423
2001	14127877
2002	14584162
2003	15055855
2004	15544175
2005	16047628
2006	16568836
2007	17107710
2008	17665647
2009	18240942
2010	18836597
2011	19452514
2012	20089401
2013	20747988
2014	21429038
2015	22133332
2016	22861685
2017	23614938
2018	24393966
2019	25198185
2020	26025684
2021	26873841
2022	27730959
2023	28589276