Year	Number
1960	119017
1961	122176
1962	125423
1963	130035
1964	138902
1965	148347
1966	158448
1967	169237
1968	180777
1969	193069
1970	206216
1971	220257
1972	235277
1973	251274
1974	268384
1975	284039
1976	298481
1977	313615
1978	329539
1979	346271
1980	363878
1981	382327
1982	401740
1983	422138
1984	443602
1985	466094
1986	483408
1987	495876
1988	508683
1989	521784.99999999994
1990	535242
1991	549047
1992	563228
1993	577734
1994	592635
1995	607920
1996	623621
1997	639683
1998	656181
1999	673106
2000	690490
2001	708274
2002	726542
2003	745281
2004	764530
2005	785524
2006	808125
2007	831376
2008	855330
2009	879905
2010	905221
2011	931266
2012	958098
2013	985626
2014	1013984
2015	1043157.9999999999
2016	1073214
2017	1104136
2018	1135949
2019	1168424
2020	1201900
2021	1236425
2022	1272145
2023	1309168