Year	Number
1960	36488
1961	37049
1962	37779
1963	38569
1964	39339
1965	39964
1966	40386
1967	40723
1968	41149
1969	41680
1970	42232
1971	42914
1972	43818
1973	44869
1974	46070
1975	47411
1976	48789
1977	50243
1978	51678
1979	53109
1980	54719
1981	56476
1982	58443
1983	60629
1984	63069
1985	65707
1986	68461
1987	71459
1988	74521
1989	78327
1990	81669
1991	83358
1992	85414
1993	87835
1994	90622
1995	93729
1996	97089
1997	100678
1998	104499
1999	108556
2000	112885
2001	117235
2002	122748
2003	128491
2004	134314
2005	139941
2006	145157
2007	150089
2008	154804
2009	159287
2010	163788
2011	168599
2012	173690
2013	178886
2014	184476
2015	190286
2016	196230
2017	202121
2018	207906
2019	213847
2020	218700
2021	221617
2022	223146
2023	224802