Year	Number
1960	890780
1961	913080
1962	935732
1963	959250
1964	985178
1965	1010348
1966	1033395
1967	1057487
1968	1082721
1969	1109139
1970	1136951
1971	1166013
1972	1196253
1973	1227718
1974	1260194
1975	1293153
1976	1325708
1977	1357492
1978	1388745
1979	1420289
1980	1453218
1981	1488043
1982	1525046
1983	1564358
1984	1605994
1985	1649734
1986	1695436
1987	1743017
1988	1792231
1989	1842948
1990	1895138
1991	1948934
1992	2003879
1993	2059321
1994	2113452
1995	2164339
1996	2211509
1997	2248783
1998	2275408
1999	2297051
2000	2314497
2001	2327601
2002	2335501
2003	2337247
2004	2332558
2005	2322933
2006	2310810
2007	2298503
2008	2287633
2009	2279330
2010	2273197
2011	2268102
2012	2263588
2013	2258168
2014	2250478
2015	2248626
2016	2255329
2017	2265059
2018	2276316
2019	2287091
2020	2296412
2021	2303010
2022	2307198
2023	2310247