Year	Number
1960	-55202
1961	-111448
1962	-99071
1963	-110250
1964	-94017
1965	-122843
1966	-31076
1967	-25103
1968	-25027
1969	-29825
1970	-37056
1971	-35129
1972	-32867
1973	-29960
1974	-27618
1975	338533
1976	340146
1977	5348
1978	19312
1979	24300
1980	29298
1981	34865
1982	41604
1983	49152
1984	56796
1985	64927
1986	59893
1987	-18564
1988	-18817
1989	-19900
1990	-21641
1991	-23561
1992	-25186
1993	-26202
1994	-31916
1995	-28581
1996	-9849
1997	14071
1998	-27387
1999	-12084
2000	-18994
2001	-25798
2002	-36255
2003	-39330
2004	-38621
2005	-111256
2006	-32745
2007	-37062
2008	-33931
2009	-33857
2010	-33071
2011	-34829
2012	-35119
2013	-35412
2014	-36088
2015	-36371
2016	-36227
2017	-36448
2018	-36227
2019	-36386
2020	-18797
2021	-18797
2022	-9999
2023	-9999