Year	kt
1960	58.672
1961	44.004
1962	44.004
1963	29.336
1964	33.003
1965	18.335
1966	14.668
1967	11.001
1968	11.001
1969	3.667
1970	3.667
1971	3.667
1972	3.667
1973	3.667
1974	0
1975	0
1976	0
1977	0
1978	0
1979	51.338
1980	66.006
1981	110.01
1982	113.677
1983	165.015
1984	231.021
1985	245.689
1986	275.025
1987	220.02
1988	227.354
1989	234.688
1990	242.022
1991	245.689
1992	176.016
1993	172.349
1994	256.69
1995	209.019
1996	242.022
1997	212.686
1998	249.356
1999	216.353
2000	370.367
2001	352.032
2002	366.7
2003	344.698
2004	388.702
2005	377.701
2006	337.364
2007	403.37
2008	355.699
2009	322.696
2010	341.031
2011	344.698
2012	352.032
2013	370.367
2014	330.03
2015	352.032
2016	374.034