Year	Number
1960	726805
1961	776854
1962	820006
1963	855874
1964	886192
1965	911333
1966	931334
1967	947583
1968	960854
1969	970725
1970	976541
1971	978166
1972	975994
1973	970870
1974	963469
1975	955082
1976	949440
1977	949960
1978	955752
1979	958155
1980	957139
1981	960780
1982	969568
1983	982790
1984	996278
1985	1007031
1986	1016055
1987	1023528
1988	1027833
1989	1045134
1990	1072976
1991	1094530
1992	1086249
1993	1053773
1994	1024780
1995	999885
1996	978817
1997	955058
1998	926507
1999	891782
2000	852504
2001	813136
2002	777733
2003	745893
2004	715186
2005	683510
2006	650095
2007	618251
2008	593399
2009	577474
2010	567188
2011	559867
2012	556564
2013	556860
2014	560245
2015	564921
2016	569146
2017	572365
2018	573502
2019	572707
2020	570754
2021	569988
2022	569378
2023	566457