Year	Number
1970	106700
1971	109800
1972	97100
1973	90700
1974	97200
1975	109500
1976	126300
1977	120700
1978	120400
1979	119000
1980	121500
1981	122100
1982	118300
1983	120600
1984	122700
1985	114200
1986	118200
1987	115600
1988	111500
1989	115600
1990	114800
1991	108100
1992	109200
1993	107700
1994	112200
1995	101100
1996	108500
1997	100900
1998	90800
1999	98800
2000	111103
2001	108810
2010	178713.8314994914
2011	204933.10191744674
2012	195745.87008854683
2013	209546
2014	208291.31028975526
2015	181611
2016	186418
2017	208832
2018	200417.75353016687
2019	204534.3
2020	115158.53899999999
2021	164384.117