Year	Number
1960	3319796
1961	3387611
1962	3466293
1963	3547889
1964	3630894
1965	3715890
1966	3802819
1967	3891537
1968	3982803
1969	4076791
1970	4174900
1971	4279120
1972	4392757
1973	4515990
1974	4647260
1975	4787769
1976	4935974
1977	5095881
1978	5269303
1979	5447917
1980	5583831
1981	5696104
1982	5825275
1983	5954343
1984	6078780
1985	6193326
1986	6296155
1987	6313609
1988	6305868
1989	6371681
1990	6479069
1991	6606891
1992	6733757
1993	6926213
1994	7274126
1995	7610238
1996	7850152
1997	8064784
1998	8255097
1999	8451625
2000	8655917
2001	8872203
2002	9100891
2003	9339183
2004	9586551
2005	9838645
2006	10094544
2007	10360896
2008	10636233
2009	10923458
2010	11236221
2011	11577539
2012	11941725
2013	12326038
2014	12722751
2015	13128327
2016	13561220
2017	14002439
2018	14426886
2019	14851787
2020	15293299
2021	15737224
2022	16176217
2023	16634672