Year	kt
1964	165.015
1965	179.683
1966	209.019
1967	143.013
1968	128.345
1969	84.341
1970	117.344
1971	121.011
1972	139.346
1973	150.347
1974	139.346
1975	187.017
1976	165.015
1977	150.347
1978	146.68
1979	91.675
1980	172.349
1981	128.345
1982	161.348
1983	117.344
1984	110.01
1985	88.008
1986	73.34
1987	73.34
1988	44.004
1989	29.336
1990	179.683
1991	165.015
1992	168.682
1993	179.683
1994	179.683
1995	176.016
1996	187.017
1997	190.684
1998	187.017
1999	143.013
2000	168.682
2001	121.011
2002	179.683
2003	168.682
2004	161.348
2005	157.681
2006	157.681
2007	157.681
2008	150.347
2009	139.346
2010	168.682
2011	245.689
2012	216.353
2013	220.02
2014	201.685
2015	227.354
2016	216.353