Year	Number
1960	960679
1961	970803
1962	979330
1963	987473
1964	996387
1965	1004957
1966	1013531
1967	1022390
1968	1030632
1969	1037193
1970	1045599
1971	1056895
1972	1068134
1973	1080511
1974	1093824
1975	1107328
1976	1121652
1977	1135722
1978	1148872
1979	1160146
1980	1170975
1981	1184247
1982	1199494
1983	1215091
1984	1228911
1985	1241170
1986	1252812
1987	1263449
1988	1272931
1989	1278617
1990	1278596
1991	1276201
1992	1271142
1993	1263117
1994	1254975
1995	1246871
1996	1238840
1997	1231191
1998	1224168
1999	1218373
2000	1212919
2001	1206168
2002	1199949
2003	1192945
2004	1181334
2005	1164024
2006	1147073
2007	1134427
2008	1122509
2009	1108107
2010	1081572
2011	1052943
2012	1034054
2013	1017667
2014	1001603
2015	984098
2016	963204
2017	941052
2018	923947
2019	913531
2020	905793
2021	900863
2022	904085
2023	908260