Year	Number
1960	311194
1961	326221
1962	342035
1963	358616
1964	376025
1965	394228
1966	413339
1967	433376
1968	454415
1969	476412
1970	499507
1971	523658
1972	540940
1973	558742
1974	577156
1975	596178
1976	615853
1977	636121
1978	657085
1979	678741
1980	701141
1981	724216
1982	748084
1983	772738
1984	798240
1985	824511
1986	851684
1987	879752
1988	908787
1989	938695
1990	969631
1991	1001587
1992	1034642
1993	1044569
1994	1046986.0000000001
1995	1049408
1996	1051840
1997	1054270
1998	1056710
1999	1059155
2000	1061609
2001	1064062
2002	1066524
2003	1068992
2004	1071469
2005	1073945
2006	1076430
2007	1078921
2008	1081421
2009	1083919
2010	1086428
2011	1088941
2012	1091465
2013	1093987
2014	1096518
2015	1099055
2016	1101602
2017	1104147
2018	1106698
2019	1105662
2020	1105766
2021	1107305
2022	1110681
2023	1116052