Annual kt
1960 2800907.5893729003
1961 2794929.8160571503
1962 2854402.1505782795
1963 2991045.6023066896
1964 3054717.067210199
1965 3092804.9038946615
1966 3103433.0386200417
1967 3114879.7269355273
1968 3120313.2612296096
1969 3180710.360531067
1970 3171922.8655376527
1971 3007539.8434293987
1972 2969005.011873146
1973 3100861.676444177
1974 3086308.8337159734
1975 3043853.215630583
1976 3242189.1605442124
1977 3285100.591781326
1978 3365348.2425254276
1979 3552825.5523831546
1980 3700919.8680524835
1981 3718065.4325213586
1982 3678549.6244596406
1983 3784213.980413607
1984 3920386.0929231048
1985 4130073.6003032974
1986 4045137.616525575
1987 4220659.594566205
1988 4345039.465168868
1989 4408875.357328922
1990 4239498.924609347
1991 4237746.847984352
1992 4168906.1498068413
1993 4129985.410375693
1994 4128512.999047907
1995 4127225.5829895097
1996 4234632.972148158
1997 4283518.996996276
1998 4247790.818656939
1999 4229101.768379044
2000 4421251.634195787
2001 4419310.993419455
2002 4468381.224462932
2003 4523890.660440186
2004 4614588.36517859
2005 4589892.12001582
2006 4643796.46066539
2007 4698316.225250375
2008 4586603.5663486775
2009 4130136.4598001954
2010 4349896.348752749
2011 4264020.725256764
2012 4086608.807780758
2013 4108980.6642510067
2014 4025167.369364748
2015 4106686.7969107837
2016 3857800.9935210105