Year	Number
1960	93820
1961	96833
1962	99789
1963	102752
1964	105582
1965	108433
1966	111119
1967	113311
1968	115119
1969	116620
1970	117790
1971	118638
1972	119112
1973	119211
1974	119121
1975	119170
1976	119651
1977	120673
1978	122111
1979	123847
1980	125894
1981	128199
1982	130764
1983	133530
1984	136413
1985	139389
1986	142354
1987	144734
1988	146435
1989	147890
1990	148997
1991	149184
1992	148630
1993	147777
1994	146471
1995	144904
1996	143654
1997	142737
1998	141809
1999	140894
2000	140015
2001	139331
2002	138789
2003	138311
2004	137920
2005	137532
2006	137195
2007	136884
2008	136720
2009	136701
2010	136551
2011	136261
2012	135965
2013	135809
2014	135727
2015	135605
2016	135323
2017	134748
2018	133870
2019	132783
2020	131939
2021	131222
2022	130406
2023	129648