Annual kt
1960 22313.577322335594
1961 26803.095882685393
1962 33105.76504686392
1963 34903.149123702824
1964 39940.554496948695
1965 44627.15464467118
1966 48411.12112222676
1967 53645.60808284532
1968 55494.233372401126
1969 56108.735104804204
1970 63774.25030516569
1971 65310.50463617339
1972 69493.59105578718
1973 77989.7468063587
1974 80770.59333389855
1975 81597.75731517814
1976 81050.25353709309
1977 87415.47731684438
1978 98074.07604704674
1979 113971.37999201963
1980 124177.0079705689
1981 127686.54657685503
1982 138996.20769539714
1983 145761.5272642186
1984 152117.30478696473
1985 156351.53841322023
1986 155291.99530116186
1987 163517.24860660365
1988 172478.4456288481
1989 216422.550130553
1990 183820.6370289837
1991 191361.10848028824
1992 168527.1756199182
1993 182911.53008469802
1994 199834.3000432625
1995 218315.53904917385
1996 242381.2921414115
1997 258190.3077050286
1998 285597.4567529795
1999 294059.6911253895
2000 294957.4991462873
2001 307613.4420373649
2002 319792.6048261358
2003 338023.9412994656
2004 368753.03318517614
2005 377443.4939371977
2006 407638.03011857776
2007 407284.2800201237
2008 418899.0749193658
2009 417857.477407251
2010 451212.1811348207
2011 449070.0837409542
2012 472472.0064622037
2013 484896.17134662915
2014 497650.49436148553
2015 508887.6621579337
2016 505426.9369413256