Year	Number
1960	1484612
1961	1495129
1962	1504683
1963	1514209
1964	1527193
1965	1548247
1966	1578912
1967	1617126
1968	1657516
1969	1694311
1970	1729780
1971	1777448
1972	1819604
1973	1858740
1974	1896780
1975	1934311
1976	1971760
1977	2009509
1978	2048115
1979	2090038
1980	2138147
1981	2193814
1982	2255686
1983	2320651
1984	2386398
1985	2450265
1986	2512116
1987	2574964
1988	2638938
1989	2703209
1990	2767853
1991	2832853
1992	2897964
1993	2861074
1994	2853574
1995	2965525
1996	3061479
1997	3142406
1998	3214485
1999	3287807
2000	3360041
2001	3429118
2002	3495903
2003	3563495
2004	3632752
2005	3701972
2006	3780132
2007	3863409
2008	3945863
2009	4027422
2010	4105241
2011	4182017
2012	4256694
2013	4330465
2014	4403714
2015	4476464
2016	4548699
2017	4620428
2018	4691053
2019	4760552
2020	4829156
2021	4896604
2022	4962262
2023	5025764