Year	Number
1960	436378
1961	450557
1962	463277
1963	477581
1964	494205
1965	511818
1966	532184
1967	553378
1968	573562
1969	595366
1970	617692
1971	640713
1972	664309
1973	688366
1974	712085
1975	735774
1976	758296
1977	780243
1978	800822
1979	821277
1980	841669
1981	891772
1982	937905
1983	954349
1984	975618
1985	980115
1986	982841
1987	1001459
1988	1030911
1989	1065306
1990	1111105
1991	1146718
1992	1186399
1993	1223328
1994	1270083
1995	1315866
1996	1375014
1997	1428087
1998	1487854
1999	1514175
2000	1550247
2001	1589026
2002	1595803
2003	1570230
2004	1593894
2005	1643553
2006	1716980
2007	1818201
2008	1950703
2009	2046150
2010	2107585
2011	2156058
2012	2206043
2013	2243560
2014	2279598
2015	2310267
2016	2330459
2017	2312034
2018	2297352
2019	2293591
2020	2258069
2021	2142116
2022	2187579
2023	2266418