Year	Number
1960	546256
1961	559855
1962	577884
1963	598922
1964	622330
1965	648714
1966	677436
1967	707110
1968	737317
1969	767878
1970	799189
1971	839248
1972	888611
1973	939989
1974	992869
1975	1046871
1976	1101210
1977	1154898
1978	1207414
1979	1259072
1980	1305989
1981	1345151
1982	1382140
1983	1421112
1984	1462588
1985	1507746
1986	1557095
1987	1609944
1988	1664789
1989	1721547
1990	1782666
1991	1848828
1992	1918743
1993	1992111
1994	2068996
1995	2149858
1996	2235354
1997	2325689
1998	2419746
1999	2517065
2000	2616435
2001	2722743
2002	2836475
2003	2951282
2004	3065932
2005	3179334
2006	3291532
2007	3402862
2008	3514676
2009	3627884
2010	3741319
2011	3871914
2012	4023610
2013	4182812
2014	4350872
2015	4531812
2016	4724824
2017	4926134
2018	5136437
2019	5333106
2020	5495791
2021	5649677
2022	5847046
2023	6087541