Year	Number
1970	190200
1971	259400
1972	327200
1973	352000
1974	408000
1975	558000
1976	669900
1977	801900
1978	890600
1979	913800
1980	1168800
1981	1486000
1982	1557800
1983	1860000
1984	1583800
1985	1579300
1986	1382900
1987	1515100
1988	1581200
1989	1617000
1990	1803000
1991	1883700
1992	1350100
1993	853000
1994	640800
1995	623200
1996	638600
1997	570600
1998	570600
1999	585500
2000	600734
2001	582712
2002	559404
2003	626532
2004	850185
2005	0
2006	1151785
2007	1204107
2008	1213854
2009	1147234
2010	2928705.67985018
2011	2284066.501168
2012	1398125.13429558
2013	2744844
2014	2391856
2015	1430460
2016	1283181
2017	1186424
2018	1442576
2019	1367458
2020	715300.42
2021	968476.425