Year	Number
1960	-139849
1961	-241419
1962	-204064
1963	-284399
1964	-307698
1965	-437879
1966	-581746
1967	-476112
1968	-526337
1969	-706864
1970	-870902
1971	-1268493
1972	-1055783
1973	-1051097
1974	-1214541
1975	-1064921
1976	-1457828
1977	-1343183
1978	-1221956
1979	-1056900
1980	-299310
1981	1796064
1982	-93299
1983	-173449
1984	-1051776
1985	-504231
1986	-788842
1987	-591428
1988	-498776
1989	-514615
1990	1283931
1991	-319075
1992	-2341581
1993	-2765836
1994	-3820962
1995	-1065946
1996	-37721
1997	-1065232
1998	-1449431
1999	-1809657
2000	-1113011
2001	-1659447
2002	-3856742
2003	-2773416
2004	-2606431
2005	-3118727
2006	-2440877
2007	-2778517
2008	-4553615
2009	-3210018
2010	-2258697
2011	-3572706
2012	-3915894
2013	-4169595
2014	-2698481
2015	-2549801
2016	-3227808
2017	-3441642
2018	-3454072
2019	-3253155
2020	-2212227
2021	-1622432
2022	-1002880
2023	-988952