Year	Number
1960	2477167
1961	2464465
1962	2458271
1963	2455319
1964	2449209
1965	2441056
1966	2434127
1967	2428842
1968	2421099
1969	2411916
1970	2407438
1971	2409472
1972	2416886
1973	2426533
1974	2430497
1975	2427907
1976	2432662
1977	2445260
1978	2456714
1979	2468159
1980	2486918
1981	2517235
1982	2546254
1983	2570723
1984	2591242
1985	2598557
1986	2597321
1987	2591854
1988	2585070
1989	2585826
1990	2595285
1991	2611611
1992	2633223
1993	2648889
1994	2653231
1995	2654008
1996	2658826
1997	2666682
1998	2675326
1999	2687394
2000	2701492
2001	2719294
2002	2740289
2003	2761174
2004	2776626
2005	2784110
2006	2788561
2007	2795224
2008	2805534
2009	2813219
2010	2823917
2011	2837987
2012	2847805
2013	2857388
2014	2871343
2015	2892281
2016	2912519
2017	2924993
2018	2932415
2019	2938087
2020	2941034
2021	2940645
2022	2951856
2023	2962523