Year	Number
1960	4070317
1961	4099682
1962	4121116
1963	4133142
1964	4144845
1965	4160997
1966	4188377
1967	4219678
1968	4245054
1969	4258929
1970	4267600
1971	4285912
1972	4314319
1973	4334986
1974	4353163
1975	4397370
1976	4469774
1977	4532578
1978	4596859
1979	4660319
1980	4712495
1981	4761268
1982	4797111
1983	4831292
1984	4861096
1985	4885548
1986	4907230
1987	4928916
1988	4951876
1989	4982751
1990	5041099
1991	5107652
1992	5152634
1993	5188949
1994	5220681
1995	5250089
1996	5277141
1997	5306543
1998	5338972
1999	5361389
2000	5383939
2001	5411473
2002	5429975
2003	5440592
2004	5450600
2005	5461841
2006	5472470
2007	5479882
2008	5487237
2009	5493722
2010	5492782
2011	5476950
2012	5439813
2013	5393788
2014	5352340
2015	5312418
2016	5286884
2017	5273998
2018	5261328
2019	5254476
2020	5242307
2021	5177554
2022	5102926
2023	5063924