Year	Number
1960	132382
1961	132197
1962	131656
1963	131223
1964	130810
1965	130591
1966	130695
1967	130996
1968	131538
1969	132451
1970	133831
1971	135642
1972	137832
1973	140283
1974	142860
1975	145542
1976	148284
1977	150957
1978	153435
1979	155641
1980	157516
1981	159054
1982	160287
1983	161276
1984	162121
1985	162922
1986	163755
1987	164655
1988	165587
1989	166469
1990	167488
1991	168861
1992	170290
1993	171504
1994	172506
1995	173315
1996	174063
1997	174813
1998	175591
1999	176373
2000	177092
2001	178066
2002	179187
2003	180271
2004	181505
2005	182834
2006	184211
2007	185449
2008	186290
2009	186726
2010	187188
2011	187801
2012	188316
2013	188759
2014	189156
2015	189546
2016	189957
2017	190183
2018	190140
2019	189881
2020	189385
2021	188748
2022	188128
2023	187703