Annual kt
1960 3677.587710376634
1961 3833.2292700660923
1962 4245.739221971682
1963 4502.585041082711
1964 5308.146928294569
1965 5460.789543055017
1966 5960.694106395482
1967 5903.453125860315
1968 6250.715074440332
1969 13745.467459178313
1970 23400.112842776623
1971 21602.74605397235
1972 23625.260699548293
1973 26273.610065642057
1974 30043.88265022511
1975 31833.61730829136
1976 35149.778113962086
1977 30153.29326126558
1978 52507.26995621695
1979 46193.900366386646
1980 49645.869496372325
1981 33422.37660953016
1982 28217.752071383995
1983 44163.10616519199
1984 72418.9594411012
1985 75265.11941913575
1986 84718.02826184484
1987 97649.57707770729
1988 108237.9018152682
1989 115286.62465243539
1990 115054.2073048315
1991 126168.00267667627
1992 125487.41103399404
1993 140776.00877268298
1994 159920.02509058866
1995 186048.66066887032
1996 192383.1057901476
1997 191261.4603455036
1998 219553.54086616627
1999 236051.23437230193
2000 242244.99853950518
2001 253320.7720318705
2002 285586.1389581362
2003 304779.5837193652
2004 326862.6913210329
2005 389693.8471608327
2006 407769.44866536575
2007 434962.69686907204
2008 453353.87997328455
2009 474060.5955377958
2010 496179.47624034696
2011 516367.96768579434
2012 521253.6282049599
2013 523928.20441451855
2014 560061.5770410992
2015 594310.5891563997
2016 629653.7460847017