Year	Number
1960	1741407
1961	1775143
1962	1810703
1963	1848832
1964	1892097
1965	1940928
1966	1993637
1967	2051680
1968	2115360
1969	2182210
1970	2251089
1971	2322960
1972	2396107
1973	2472606
1974	2553215
1975	2634867
1976	2719827
1977	2805417
1978	2899156
1979	3001934
1980	3095524
1981	3187937
1982	3286722
1983	3377791
1984	3464813
1985	3556004
1986	3651504
1987	3759322
1988	3856802
1989	3942316
1990	4036461
1991	4136475
1992	4229873
1993	4312082
1994	4386712
1995	4459546
1996	4543440
1997	4631924
1998	4720836
1999	4817061
2000	4928110
2001	5050748
2002	5178167
2003	5308624
2004	5446243
2005	5593955
2006	5749991
2007	5913076
2008	6081885
2009	6263506
2010	6467887
2011	6693398
2012	6935926
2013	7190881
2014	7456996
2015	7732736
2016	8012498
2017	8301785
2018	8606531
2019	8918914
2020	9192275
2021	9388703
2022	9555010
2023	9774629