Year	Number
1960	2649829
1961	2667104
1962	2664871
1963	2646556
1964	2614189
1965	2569897
1966	2520618
1967	2484033
1968	2457616
1969	2443839
1970	2444741
1971	2447647
1972	2465224
1973	2505770
1974	2576383
1975	2674067
1976	2780885
1977	2866271
1978	2924360
1979	2971335
1980	3016766
1981	3066392
1982	3052214
1983	2968336
1984	2894534
1985	2847857
1986	2826790
1987	2820459
1988	2814657
1989	2799011
1990	2754951
1991	2668921
1992	2577257
1993	2506854
1994	2439672
1995	2370981
1996	2304799
1997	2251153
1998	2209613
1999	2165449
2000	2111768
2001	2021473
2002	1917612
2003	1841884
2004	1777986
2005	1729806
2006	1702689
2007	1671850
2008	1644884
2009	1635358
2010	1630992
2011	1626553
2012	1619828
2013	1610104
2014	1598693
2015	1591062
2016	1587779
2017	1588640
2018	1588845
2019	1586140
2020	1579577
2021	1569364
2022	1552600
2023	1545730