Year	Number
1960	3442360
1961	3451726
1962	3437129
1963	3436316
1964	3450143
1965	3472279
1966	3493142
1967	3505732
1968	3515272
1969	3534918
1970	3558661
1971	3573100
1972	3570893
1973	3548348
1974	3509619
1975	3466801
1976	3414213
1977	3349418
1978	3283270
1979	3216592
1980	3155685
1981	3097473
1982	3031878
1983	2961743
1984	2888229
1985	2818985
1986	2766391
1987	2731911
1988	2715154
1989	2713308
1990	2727878
1991	2754736
1992	2783112
1993	2809702
1994	2832668
1995	2848046
1996	2859202
1997	2876327
1998	2902519
1999	2931170
2000	2959105
2001	2982895
2002	2996997
2003	3003598
2004	3001600
2005	2986837
2006	2963332
2007	2940526
2008	2925170
2009	2916098
2010	2909329
2011	2901855
2012	2887465
2013	2863889
2014	2837999
2015	2811351
2016	2786927
2017	2767111
2018	2747066
2019	2731641
2020	2720919
2021	2718089
2022	2730364
2023	2742725