Year	Number
1960	439608
1961	451601
1962	464187
1963	477888
1964	492913
1965	509524
1966	527447
1967	546063
1968	565368
1969	585303
1970	605745
1971	626599
1972	646811
1973	667356
1974	689257
1975	711555
1976	734262
1977	757104
1978	778593
1979	796538
1980	816475
1981	840631
1982	864938
1983	888259
1984	909778
1985	930956
1986	953422
1987	976919
1988	1002801
1989	1032806
1990	1065276
1991	1099285
1992	1134585
1993	1170801
1994	1207860
1995	1245509
1996	1281883
1997	1316566
1998	1350544
1999	1383748
2000	1416213
2001	1447763
2002	1478668
2003	1509458
2004	1540410
2005	1573744
2006	1610119
2007	1647751
2008	1686344
2009	1725589
2010	1765230
2011	1805077
2012	1844536
2013	1883140
2014	1921020
2015	1958146
2016	1994734
2017	2031223
2018	2067561
2019	2103584
2020	2140380
2021	2178779
2022	2218418
2023	2258607