Year	Number
1960	2216213
1961	2244436
1962	2275666
1963	2329940
1964	2401075
1965	2473151
1966	2578205
1967	2726560
1968	2868136
1969	2985012
1970	3086033
1971	3177255
1972	3250308
1973	3286645
1974	3305192
1975	3320794
1976	3325842
1977	3318454
1978	3294079
1979	3263449
1980	3232595
1981	3195253
1982	3141273
1983	3079511
1984	3022431
1985	2967414
1986	2918972
1987	2871155
1988	2838028
1989	2832006
1990	2841049
1991	2867356
1992	2908268
1993	2954695
1994	3000571
1995	3033669
1996	3052374
1997	3064294
1998	3070600
1999	3071372
2000	3064187
2001	3049257
2002	3027105
2003	3004671
2004	2985102
2005	2959427
2006	2924456
2007	2883257
2008	2840032
2009	2797056
2010	2749668
2011	2699349
2012	2655321
2013	2619192
2014	2590092
2015	2568041
2016	2550251
2017	2536665
2018	2528513
2019	2523874
2020	2522373
2021	2524083
2022	2527081
2023	2529138