Year	Number
1969	698158
1970	696127
1971	694092
1972	691236
1973	687838
1974	686144
1975	686364
1976	685597
1977	686039
1978	689605
1979	694038
1980	698623
1981	705936
1982	716259
1983	730556
1984	744219
1985	757302
1986	772061
1987	786177
1988	800596
1989	818020
1990	834793
1991	850738
1992	867621
1993	885209
1994	902510
1995	916357
1996	925494
1997	927673
1998	924600
1999	922457
2000	921888
2001	918899
2002	914280
2003	908108
2004	899805
2005	891243
2006	884659
2007	878977
2008	876916
2009	877509
2010	879536
2011	882709
2012	886220
2013	887965
2014	891156
2015	893205
2016	893191
2017	890137
2018	884143
2019	873989
2020	863722
2021	850674
2022	835030