Year	Number
1960	-85893
1961	-8590
1962	-35926
1963	-34367
1964	-2472
1965	-12021
1966	-48621
1967	-19649
1968	-14137
1969	-56482
1970	-17751
1971	-178218
1972	-202425
1973	-51762
1974	92447
1975	51378
1976	-161636
1977	42779
1978	705693
1979	268168
1980	-1163282
1981	-2568702
1982	-596997
1983	-892852
1984	58004
1985	-717212
1986	-725220
1987	-926350
1988	-1079066
1989	-667118
1990	-2221922
1991	-1436664
1992	1181820
1993	1335700
1994	2465097
1995	-482410
1996	-1829372
1997	-853164
1998	-158118
1999	-156618
2000	-1126792
2001	-369904
2002	1108886
2003	1815
2004	-412082
2005	18662
2006	-1571259
2007	-2110439
2008	138386
2009	-556979
2010	-664130
2011	-212998
2012	55634
2013	13145
2014	-515267
2015	-877524
2016	-379760
2017	-577864
2018	-594290
2019	-457552
2020	57214
2021	-647431
2022	-542887
2023	-538217