Annual kt
1963 851.9129219392796
1964 776.9017212653807
1965 873.3446935603937
1966 851.9129219392797
1967 959.0717800448494
1968 2684.329395544523
1969 3793.4235769371694
1970 4414.944953949474
1971 5047.182216772336
1972 7635.068640021846
1973 11519.577246348748
1974 12730.472342941686
1975 14707.55327498945
1976 11889.275306812962
1977 13909.219782102953
1978 16802.50895095334
1979 25289.49051291446
1980 25096.60456832444
1981 24142.890731184867
1982 24067.879530510967
1983 23891.06741463678
1984 23130.239522087228
1985 26586.11269599186
1986 31097.500622236344
1987 29768.730781727278
1988 34387.27756607733
1989 38636.126289963184
1990 35314.20168869052
1991 39466.60744028135
1992 51168.35474540955
1993 58957.73621395461
1994 58880.96832825935
1995 60452.15105548887
1996 61859.56229323518
1997 65923.14237603726
1998 55774.42788712476
1999 57867.632237082
2000 63169.73420910083
2001 57734.56790187688
2002 59591.25408280391
2003 63299.39508969189
2004 74005.23645619184
2005 75103.39773711615
2006 82381.79402952043
2007 99238.32346720638
2008 104655.2625210932
2009 108422.49740856903
2010 121728.46952093462
2011 141697.276669581
2012 161656.2348381294
2013 144799.70540044343
2014 187431.01575453262
2015 185495.6911652803
2016 180073.82762134454