Year	Number
1960	512865
1961	524403
1962	536428
1963	549041
1964	562274
1965	570975
1966	574855
1967	578723
1968	582655
1969	586737
1970	592244
1971	604139
1972	626601
1973	657246
1974	691569
1975	727930
1976	766424
1977	806968
1978	849394
1979	893500
1980	938578
1981	982747
1982	1023009
1983	1060717
1984	1099170
1985	1138704
1986	1179263
1987	1220361
1988	1261272
1989	1301671
1990	1341474
1991	1380584
1992	1420695
1993	1462262
1994	1503544
1995	1543634
1996	1582169
1997	1619354
1998	1655699
1999	1691558
2000	1726985
2001	1761930
2002	1795130
2003	1826863
2004	1859085
2005	1892807
2006	1928704
2007	1966977
2008	2007320
2009	2048997
2010	2091664
2011	2134037
2012	2175425
2013	2217278
2014	2260376
2015	2305171
2016	2352416
2017	2401840
2018	2451409
2019	2499702
2020	2546402
2021	2588423
2022	2630296
2023	2675352