Year	kt
1961	7.334
1962	11.001
1963	18.335
1964	18.335
1965	11.001
1966	11.001
1967	22.002
1968	33.003
1969	11.001
1970	22.002
1971	29.336
1972	25.669
1973	36.67
1974	33.003
1975	33.003
1976	33.003
1977	22.002
1978	22.002
1979	25.669
1980	29.336
1981	29.336
1982	25.669
1983	22.002
1984	22.002
1985	22.002
1986	18.335
1987	22.002
1988	22.002
1989	22.002
1990	22.002
1991	22.002
1992	25.669
1993	29.336
1994	29.336
1995	29.336
1996	29.336
1997	29.336
1998	29.336
1999	29.336
2000	33.003
2001	29.336
2002	40.337
2003	44.004
2004	47.671
2005	58.672
2006	66.006
2007	58.672
2008	66.006
2009	55.005
2010	58.672
2011	55.005
2012	51.338
2013	51.338
2014	58.672
2015	62.339
2016	66.006