Year	Number
1960	152612
1961	161214
1962	170313
1963	179927
1964	190097
1965	204834
1966	220736
1967	237873
1968	256366
1969	276241
1970	297687
1971	320797
1972	345738
1973	372541
1974	401463
1975	432630
1976	463848
1977	488495
1978	514489.00000000006
1979	541866
1980	570741
1981	601068
1982	633052
1983	666739
1984	702267
1985	739584
1986	778939
1987	819198
1988	857837
1989	898184
1990	940489
1991	984786
1992	1031234.9999999999
1993	1079737
1994	1130593
1995	1183844
1996	1239682
1997	1297989
1998	1359124
1999	1423139
2000	1490263
2001	1560356
2002	1633849
2003	1710803
2004	1791496
2005	1875756
2006	1964104
2007	2056612.9999999998
2008	2153480
2009	2254908
2010	2361114
2011	2482205
2012	2623348
2013	2772516
2014	2930167
2015	3096782
2016	3272870
2017	3458972
2018	3655656
2019	3822425
2020	3992411
2021	4164167.0000000005
2022	4336670
2023	4509287