Year	Number
1960	710831
1961	705926
1962	703145
1963	704051
1964	708970
1965	717728
1966	730664
1967	747583
1968	768046
1969	791427
1970	817685
1971	843270
1972	870014
1973	901384
1974	935079
1975	971548
1976	1011019
1977	1053229
1978	1097943
1979	1146546
1980	1201981
1981	1262047
1982	1321202
1983	1378039
1984	1433316
1985	1490834
1986	1551037
1987	1611417
1988	1672565
1989	1734537
1990	1798372
1991	1863512
1992	1920961
1993	1977557
1994	2040637
1995	2106507
1996	2176653
1997	2249760
1998	2326522
1999	2407088
2000	2495287
2001	2587991
2002	2674456
2003	2759888
2004	2853103
2005	2952240
2006	3058868
2007	3175336
2008	3300605
2009	3433605
2010	3570256
2011	3705587
2012	3836932
2013	3965658
2014	4091485
2015	4215647
2016	4347217
2017	4496476
2018	4664201
2019	4845390
2020	5029941
2021	5212350
2022	5405099
2023	5625125