Year	Number
1960	1570167
1961	1606167
1962	1643668
1963	1679234
1964	1712769
1965	1745537
1966	1776811
1967	1805024
1968	1831411
1969	1856222
1970	1878036
1971	1897146
1972	1913094
1973	1926431
1974	1939277
1975	1952944
1976	1968534
1977	1985669
1978	2002980
1979	2020973
1980	2040822
1981	2061644
1982	2083141
1983	2106849
1984	2133380
1985	2163842
1986	2197110
1987	2231774
1988	2267511
1989	2305569
1990	2345287
1991	2380590
1992	2392236
1993	2399565
1994	2414733
1995	2423995
1996	2432640
1997	2439705
1998	2443255
1999	2444945
2000	2445760
2001	2446725
2002	2447543
2003	2445821
2004	2443138
2005	2440889
2006	2438622
2007	2436373
2008	2434352
2009	2432094
2010	2430927
2011	2430020
2012	2430787
2013	2436223
2014	2446095
2015	2454102
2016	2459331
2017	2464136
2018	2467643
2019	2468793
2020	2467204
2021	2465154
2022	2467061
2023	2466220