Year	Number
1960	513340
1961	519329
1962	525754
1963	532592
1964	539830
1965	547535
1966	555748
1967	564436
1968	573611
1969	584628
1970	597192
1971	609693
1972	622289
1973	635288
1974	648922
1975	663340
1976	678660
1977	694931
1978	712135
1979	730188
1980	749078
1981	768904
1982	789585
1983	811098
1984	833417
1985	856482
1986	880340
1987	905016
1988	930464
1989	956509
1990	983028
1991	1009995
1992	1037446
1993	1065390
1994	1093611
1995	1121964
1996	1150601
1997	1179806
1998	1209832
1999	1240764
2000	1272935
2001	1306590
2002	1341696
2003	1378398
2004	1417110
2005	1458353
2006	1502534
2007	1549774
2008	1599978
2009	1653542
2010	1711105
2011	1772500
2012	1836705
2013	1902226
2014	1966855
2015	2028517
2016	2086206
2017	2140215
2018	2192012
2019	2242785
2020	2292573
2021	2341179
2022	2388992
2023	2436566