Year kt 1960 25.669 1961 25.669 1962 22.002 1963 25.669 1964 3.667 1965 25.669 1966 25.669 1967 3.667 1968 14.668 1969 25.669 1970 0 1971 0 1972 0 1973 0 1974 0 1975 0 1976 0 1977 0 1978 0 1979 0 1980 0 1981 0 1982 0 1983 0 1984 0 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 40.337 2009 110.01 2010 132.012 2011 451.041 2012 594.054 2013 773.737 2014 1074.431 2015 1092.766 2016 1173.44