Year	Number
1960	3087465
1961	3165203
1962	3227680
1963	3280454
1964	3323305
1965	3351446
1966	3367032
1967	3367135
1968	3353515
1969	3326487
1970	3286353
1971	3290364
1972	3240818
1973	3191680
1974	3145893
1975	3102114
1976	3054708
1977	3004734
1978	2949883
1979	2897250
1980	2863031
1981	2842847
1982	2836824
1983	2833438
1984	2829470
1985	2821217
1986	2817506
1987	2834433
1988	2859529
1989	2902442
1990	2939970
1991	2973939
1992	3009190
1993	3036969
1994	3054925
1995	3063707
1996	3067978
1997	3065769
1998	3052743
1999	3033472
2000	3013985
2001	2998901
2002	2986203
2003	2968258
2004	2947297
2005	2922655
2006	2902198
2007	2888731
2008	2885694
2009	2887338
2010	2889591
2011	2892188
2012	2904808
2013	2922741
2014	2943268
2015	2960591
2016	2989951
2017	3016802
2018	3045279
2019	3071908
2020	3084169
2021	3076086
2022	3102619
2023	3161056