Year	Number
1960	2716910
1961	2732641
1962	2754388
1963	2780441
1964	2807160
1965	2833474
1966	2859324
1967	2884891
1968	2912238
1969	2939959
1970	2963684
1971	2982983
1972	2997812
1973	3009281
1974	3020179
1975	3031897
1976	3044986
1977	3057349
1978	3068561
1979	3078027
1980	3090637
1981	3117083
1982	3153597
1983	3186800
1984	3209067
1985	3221843
1986	3232126
1987	3243254
1988	3253455
1989	3261701
1990	3267916
1991	3202606
1992	3119741
1993	3137946
1994	3177520
1995	3149375
1996	3092978
1997	3067319
1998	3056471
1999	3035919
2000	3000132
2001	2881412
2002	2878818
2003	2877977
2004	2877134
2005	2878105
2006	2876743
2007	2874124
2008	2872102
2009	2870349
2010	2869698
2011	2863337
2012	2851839
2013	2838041
2014	2816771
2015	2781825
2016	2750258
2017	2702875
2018	2661812
2019	2628491
2020	2600083
2021	2478341
2022	2450668
2023	2437476