Year	Number
1960	1622047
1961	1660109
1962	1700145
1963	1738332
1964	1773362
1965	1806955
1966	1838933
1967	1867667
1968	1894659
1969	1920160
1970	1943015
1971	1963863
1972	1981230
1973	1995275
1974	2008099
1975	2022340
1976	2039954
1977	2058811
1978	2077726
1979	2098898
1980	2121996
1981	2144615
1982	2168314
1983	2194341
1984	2221980
1985	2253271
1986	2287447
1987	2323640
1988	2361409
1989	2401579
1990	2443518
1991	2480656
1992	2493661
1993	2502456
1994	2519112
1995	2529358
1996	2538739
1997	2545489
1998	2548742
1999	2551029
2000	2553172
2001	2556270
2002	2559731
2003	2559609
2004	2556250
2005	2552190
2006	2547892
2007	2543634
2008	2540296
2009	2537755
2010	2536832
2011	2536066
2012	2536472
2013	2541682
2014	2552040
2015	2560496
2016	2565960
2017	2571262
2018	2575391
2019	2577008
2020	2575774
2021	2574265
2022	2577072
2023	2577097