Year	Number
1960	2257635
1961	2279903
1962	2304127
1963	2324506
1964	2341383
1965	2355766
1966	2368562
1967	2382558
1968	2398319
1969	2413759
1970	2428280
1971	2443749
1972	2461025
1973	2477161
1974	2491842
1975	2505386
1976	2518674
1977	2532144
1978	2545801
1979	2560654
1980	2577037
1981	2595574
1982	2614396
1983	2632458
1984	2652161
1985	2668949
1986	2684327
1987	2705023
1988	2725352
1989	2737787
1990	2746374
1991	2757657
1992	2771010
1993	2786174
1994	2801574
1995	2815342
1996	2828784
1997	2844392
1998	2864099
1999	2888005
2000	2911610
2001	2932188
2002	2955266
2003	2980551
2004	3006006
2005	3035172
2006	3070301
2007	3113061
2008	3159344
2009	3199966
2010	3237006
2011	3275246
2012	3313697
2013	3349005
2014	3382146
2015	3411090
2016	3434222
2017	3452963
2018	3467292
2019	3485000
2020	3499828
2021	3511912
2022	3539342
2023	3577878