Annual kt
1960 297.4927561818263
1961 335.8789182698038
1962 405.85369290934625
1963 435.75870186056125
1964 653.6380527908416
1965 584.6203701980197
1966 556.201324424505
1967 633.3387343811883
1968 730.7754627475249
1969 816.0326000680694
1970 941.8883742079208
1971 1047.444829938119
1972 1092.1033304393563
1973 1181.4203314418316
1974 1242.3182866707918
1975 1189.540058805693
1976 950.008101571782
1977 1372.2339244925738
1978 1234.1985593069303
1979 1441.251607085396
1980 1457.4910618131187
1981 1810.6992021410888
1982 1518.3890170420784
1983 1412.832561311881
1984 1262.6176050804454
1985 1360.0543334467818
1986 1364.1141971287125
1987 1274.7971961262372
1988 1429.0720160396038
1989 1526.5087444059404
1990 1640.1849275
1991 1534.49282
1992 1565.8089999999997
1993 1587.8109999999997
1994 1587.8109999999997
1995 1624.4809999999998
1996 1683.1529999999993
1997 1679.4859999999994
1998 1657.4839999999995
1999 1697.8209999999995
2000 1782.1619999999998
2001 2057.187
2002 1877.5039999999997
2003 2046.1859999999997
2004 2376.216000000001
2005 2108.5249999999996
2006 2240.537
2007 2273.5399999999995
2008 1965.512
2009 1939.843
2010 2306.543
2011 2200.2000000000003
2012 2167.197
2013 2460.5570000000002
2014 2841.925000000001
2015 3362.639
2016 3259.962999999999