Year	kt
1960	18.335
1961	18.335
1962	18.335
1963	22.002
1964	22.002
1965	22.002
1966	25.669
1967	22.002
1968	22.002
1969	80.674
1970	91.675
1971	99.009
1972	106.343
1973	135.679
1974	121.011
1975	146.68
1976	165.015
1977	132.012
1978	161.348
1979	143.013
1980	128.345
1981	183.35
1982	150.347
1983	161.348
1984	161.348
1985	165.015
1986	176.016
1987	143.013
1988	161.348
1989	117.344
1990	110.01
1991	73.34
1992	47.671
1993	47.671
1994	44.004
1995	25.669
1996	33.003
1997	66.006
1998	66.006
1999	77.007
2000	88.008
2001	84.341
2002	84.341
2003	80.674
2004	99.009
2005	869.079
2006	1096.433
2007	1243.113
2008	1114.768
2009	1210.11
2010	1305.452
2011	1639.149
2012	2398.218
2013	2350.547
2014	2247.871
2015	2324.878
2016	2365.215