Annual kt
1960 2208840.658327724
1961 2318336.1016992154
1962 2480300.1074474296
1963 2638863.080909231
1964 2810425.903004525
1965 3032605.506938615
1966 3236216.924657172
1967 3460216.625950309
1968 3749735.8407275304
1969 4065426.9379241928
1970 4708799.422814393
1971 4928240.897826759
1972 5323936.449989918
1973 5659065.867665865
1974 5461968.482600736
1975 5267062.398961302
1976 5539494.252348006
1977 5724038.553653924
1978 5865080.133213693
1979 5912889.62042127
1980 5527951.003307737
1981 5128323.8811913775
1982 4903869.155558481
1983 4827297.3403480835
1984 4885340.883758719
1985 4809291.94739489
1986 4959430.022308311
1987 5026338.5574611435
1988 5225459.603405737
1989 5337319.753597116
1990 5097374.24320444
1991 5127446.953262454
1992 5270013.317837285
1993 5379849.570553305
1994 5464237.665018601
1995 5457202.257474448
1996 5604346.040049353
1997 5610093.585333857
1998 5615009.539559269
1999 5685179.634678013
2000 5799011.940005411
2001 5810856.593187751
2002 5761123.032326453
2003 5856215.101972686
2004 5931345.306594319
2005 5934833.573514748
2006 5877089.509398414
2007 5781129.05262853
2008 5652773.340618717
2009 5485921.585864683
2010 5509055.271654486
2011 5331304.522577343
2012 5340956.130311819
2013 5278705.588182749
2014 5281608.8249902325
2015 5521060.956374156
2016 5402595.405489067