Year	Number
1960	5212541
1961	5243849
1962	5237598
1963	5200602
1964	5136544
1965	5049779
1966	4956786
1967	4892839
1968	4848402
1969	4825114
1970	4829121
1971	4840587
1972	4879876
1973	4957656
1974	5089642
1975	5275702
1976	5485362
1977	5650701
1978	5760747
1979	5852178
1980	5941276
1981	6039705
1982	6012064
1983	5847115
1984	5704348
1985	5615879
1986	5573861
1987	5560830
1988	5554664
1989	5531780
1990	5452521
1991	5288922
1992	5108424
1993	4964906
1994	4828520
1995	4690394
1996	4557837
1997	4450607
1998	4368469
1999	4282219
2000	4177559
2001	4000532
2002	3792690
2003	3636476
2004	3504005
2005	3404675
2006	3349151
2007	3287520
2008	3233612
2009	3213802
2010	3204556
2011	3194325
2012	3178578
2013	3157067
2014	3132228
2015	3114888
2016	3106483
2017	3106808
2018	3106100
2019	3099866
2020	3085931
2021	3064651
2022	3032070
2023	3018286