Annual kt
1960 5169314.428408689
1961 4893678.205881724
1962 4842290.5823094025
1963 5034904.973296437
1964 5145287.98070479
1965 5300023.16017862
1966 5404300.835669278
1967 5340392.558168693
1968 5391960.789400257
1969 5590528.70944939
1970 5871023.287404659
1971 5877639.369913617
1972 5912941.1244548885
1973 6095738.008523849
1974 6101505.767033327
1975 6304055.973996319
1976 6570607.5185626745
1977 6775440.635082417
1978 6985914.86605724
1979 7255164.296783573
1980 7497435.139729625
1981 7409289.181216944
1982 7578180.605720214
1983 7817496.773391202
1984 8155635.635967722
1985 8820092.794238452
1986 8936106.775531992
1987 9317954.158626793
1988 9675785.230141187
1989 9718120.436151855
1990 9267921.21197941
1991 9255189.091540607
1992 8689147.112403527
1993 8697606.931071158
1994 8781387.686475
1995 8969335.911191316
1996 9196722.32651271
1997 9132006.525537627
1998 8890822.056202082
1999 8882148.7852048
2000 9156057.923545081
2001 9204181.262218095
2002 9639691.147751661
2003 10387764.024433328
2004 11121108.7995952
2005 11788637.767766606
2006 12498312.59855243
2007 12729481.909003962
2008 13603435.425395656
2009 12946899.786277456
2010 14220608.140186928
2011 15144867.739460556
2012 15363091.01964013
2013 15218140.750055518
2014 15190269.745667815
2015 15844904.853150763
2016 15386666.216147231