Year	Number
1960	-122438
1961	-179456
1962	-138094
1963	-169333
1964	-150639
1965	-163135
1966	-95271
1967	-107968
1968	-117493
1969	-132811
1970	-143422
1971	-204967
1972	-185511
1973	-160077
1974	-164988
1975	208947
1976	784990
1977	-100888
1978	-779000
1979	-85711
1980	30441
1981	1194769
1982	29273
1983	157107
1984	136655
1985	-112905
1986	129859
1987	-56284
1988	-105375
1989	14553
1990	743748
1991	-35988
1992	-362162
1993	-1132362
1994	-285944
1995	-285098
1996	-177597
1997	30787
1998	75051
1999	84374
2000	246824
2001	156747
2002	-660896
2003	78193
2004	266115
2005	133256
2006	54061
2007	-91177
2008	-126142
2009	-124175
2010	-43905
2011	-957845
2012	-406374
2013	-45524
2014	124496
2015	-240681
2016	-543722
2017	-693065
2018	25497
2019	-44693
2020	-67916
2021	-140967
2022	266784
2023	256373