Annual kt
1960 3717.6204956067063
1961 3874.9563086009443
1962 4291.956682927543
1963 4551.598425432783
1964 5365.929345108311
1965 5520.233567828895
1966 6025.5798972388075
1967 5967.71581371859
1968 6318.7579204079175
1969 13895.095255988595
1970 23654.837343065534
1971 21837.905120530657
1972 23882.436071578402
1973 26559.61433578053
1974 30370.92863697895
1975 32180.1456483778
1976 35532.40488698249
1977 30481.53024925137
1978 53078.84361447222
1979 46696.7491460606
1980 50186.295065421466
1981 33786.19956361297
1982 28524.91951300931
1983 44643.848511381424
1984 73207.28398376558
1985 76084.4261490664
1986 85640.23566996517
1987 98712.55228178714
1988 109416.13739205622
1989 116541.58987640231
1990 116306.64252421576
1991 127541.41833711343
1992 126853.41803929998
1993 142308.44148906443
1994 161660.85210074403
1995 188073.91381344764
1996 194477.3132333202
1997 193343.45799390695
1998 221943.51506669904
1999 238620.79602878017
2000 244881.98309659073
2001 256078.3231386608
2002 288694.91826293356
2003 308097.2953766891
2004 330420.7910733396
2005 393935.9023658931
2006 412208.2678173182
2007 439697.53111319355
2008 458288.9134624875
2009 479221.03425518
2010 501580.69246473577
2011 521988.94795275765
2012 526927.7918664942
2013 529631.4824693485
2014 566158.1888951247
2015 600780.022396163
2016 636507.9111438233