Year	Number
1970	285285
1971	301580
1972	305690
1973	318887
1974	324579
1975	341533
1976	362103
1977	368284
1978	369640
1979	411515
1980	472167
1982	509240
1983	536656
1984	534317
1985	561551
1986	556684
1987	583725
1988	599957
1989	595612
1990	632882
1991	674045
1992	703854
1993	737476
1994	765972
1995	764587
1996	762712
1997	777917
1998	783090
1999	830206
2000	838437
2001	868070
2002	923391
2003	927217
2004	941957
2005	945089
2006	966206
2007	952964
2008	944341
2010	923745
2011	924188
2012	902790
2013	880601
2014	875753
2015	853615
2016	887739
2017	902565
2018	887207
2019	883822
2020	881470
2021	881470
2022	872148