Year	Number
1970	305200
1971	292500
1972	291400
1973	348900
1974	371900
1975	363800
1976	352900
1977	348000
1978	349200
1979	357700
1980	382000
1981	383600
1982	344000
1983	325300
1984	343600
1985	351900
1986	343000
1987	333800
1988	380900
1989	370200
1990	346800
1991	257800
1992	258700
1993	243700
1994	253500
1995	282800
1996	305800
1997	310800
1998	317800
1999	319600
2000	963468
2001	982013
2002	263906
2003	1036092
2004	988755
2005	1018480
2006	1042100
2007	1188947
2008	1200361
2009	1198381
2010	1234528.61925597
2011	1245743.61579713
2012	1280198.18557714
2013	1263297.33686341
2014	1290419
2015	1322033
2016	1359442
2017	1443818
2018	1250460
2019	1215983
2020	511637
2021	571070.076