Year	Number
1960	485596
1961	497500
1962	509606
1963	521124
1964	532444
1965	543361
1966	553997
1967	565535
1968	578254
1969	591502
1970	606495
1971	621409
1972	635250
1973	649884
1974	664521
1975	678125
1976	690694
1977	704466
1978	718611
1979	730282
1980	739026
1981	745716
1982	752168
1983	758774
1984	764491
1985	772506
1986	783417
1987	791246
1988	796023
1989	800107
1990	802711
1991	804196
1992	804650
1993	803061
1994	800236
1995	798060
1996	796467
1997	794640
1998	793111
1999	792031
2000	792314
2001	794258
2002	797287
2003	801773
2004	808188
2005	816825
2006	827276
2007	842556
2008	864400
2009	890188
2010	919585
2011	952106
2012	984579
2013	1013550
2014	1039547
2015	1065638
2016	1090575
2017	1112661
2018	1132945
2019	1151405
2020	1169017
2021	1187085
2022	1209352
2023	1232155