Year	Number
1960	1036295
1961	1034940
1962	1030534
1963	1023970
1964	1017378
1965	1011624
1966	1006446
1967	1002033
1968	1001692
1969	1006117
1970	1009722
1971	1010963
1972	1011229
1973	1013437
1974	1020436
1975	1026096
1976	1029542
1977	1033838
1978	1032675
1979	1029722
1980	1028662
1981	1025971
1982	1022396
1983	1014704
1984	1002816
1985	989215
1986	977368
1987	969214
1988	960023
1989	934391
1990	900924
1991	873855
1992	844363
1993	817160
1994	792932
1995	767274
1996	742356
1997	716813
1998	690465
1999	666724
2000	646123
2001	616690
2002	587092
2003	567132
2004	549103
2005	534448
2006	524435
2007	518995
2008	516514
2009	517043
2010	519497
2011	521324
2012	523441
2013	525420
2014	523979
2015	520048
2016	516261
2017	512861
2018	509089
2019	504462
2020	500040
2021	495170
2022	465391
2023	461916