Year	Number
1960	155402
1961	155402
1962	155402
1963	155402
1964	155402
1966	155402
1967	155402
1968	155402
1969	155402
1971	155402
1972	155402
1973	155402
1974	155402
1976	197000
1977	197000
1978	196000
1979	211000
1981	232100
1982	244000
1983	255000
1984	256500
1985	268600
1986	287800
1987	370400
1988	353300
1989	304107
1990	336648
1991	339057
1992	336945
1993	349000
1994	349471
1995	353163
1996	356158
1997	370800
1998	387642
1999	433762
2000	488606
2001	574415
2002	665639
2003	724261
2004	768196
2005	855958
2006	961573
2007	1055118
2008	1088089
2009	1119786
2010	1163625
2011	1193415
2012	1216522
2013	1237276
2014	1264817
2015	1295857
2016	1322002
2017	1349188
2018	1384173
2019	1447134
2020	1502230
2021	1539269
2022	1573526