Year	kt
1960	14.668
1961	18.335
1962	14.668
1963	18.335
1964	14.668
1965	11.001
1966	11.001
1967	11.001
1968	11.001
1969	7.334
1970	14.668
1971	7.334
1972	3.667
1973	3.667
1974	3.667
1975	7.334
1976	3.667
1977	3.667
1978	3.667
1979	0
1980	11.001
1981	3.667
1982	3.667
1983	3.667
1984	3.667
1985	0
1986	0
1987	0
1988	0
1989	0
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	3.667
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0