Year	Number
1960	742120
1961	750528
1962	758701
1963	766277
1964	772381
1965	779003
1966	787572
1967	796867
1968	806961
1969	817763
1970	829258
1971	841600
1972	854942
1973	869387
1974	885014
1975	902010
1976	920732
1977	941235
1978	963366
1979	987036
1980	1012100
1981	1038478
1982	1066080
1983	1095002
1984	1125337
1985	1157048
1986	1190267
1987	1225119
1988	1261396
1989	1299335
1990	1339129
1991	1380571
1992	1423599
1993	1501868
1994	1563530
1995	1583620
1996	1620441
1997	1668700
1998	1722889
1999	1780096
2000	1839477
2001	1900625
2002	1963319
2003	2027662
2004	2093377
2005	2167926
2006	2240197
2007	2305784
2008	2377450
2009	2454442
2010	2534247
2011	2614186
2012	2694937
2013	2776814
2014	2862479
2015	2951089
2016	3041061
2017	3133905
2018	3230146
2019	3329748
2020	3431559
2021	3535679
2022	3642015
2023	3749960