Annual kt
1960 6909.800211225757
1961 8016.728293177176
1962 7782.497777542405
1963 7586.046377332597
1964 7506.710234940174
1965 8436.076474394267
1966 8930.982886461285
1967 9214.326252148507
1968 9297.440306083427
1969 9063.209790448653
1970 8160.288931792034
1971 10437.054628231246
1972 11999.982895093812
1973 15415.131439752633
1974 18856.5792581327
1975 23590.448527956807
1976 26840.28735208209
1977 31720.681146924562
1978 35669.32924421436
1979 36725.057232167186
1980 41297.37382056079
1981 39734.445553698235
1982 42451.52055243259
1983 42329.363229601186
1984 56721.71690137116
1985 63469.983553541075
1986 63969.71805603309
1987 70414.44226965228
1988 70314.49536915391
1989 73831.14557187549
1990 94027.8229466638
1991 104069.23458671119
1992 116188.10028064632
1993 135421.57910688556
1994 146960.18804145878
1995 172981.07734387572
1996 186897.56961788054
1997 195052.0811172445
1998 169475.22723723232
1999 213801.55918495017
2000 200799.31593980704
2001 229048.87363403203
2002 222649.13043199957
2003 249545.74702302992
2004 263185.7526955645
2005 280685.5113246244
2006 310398.6047626323
2007 343694.964555695
2008 370458.8675780196
2009 404485.151998964
2010 447381.1265950754
2011 495552.46554724005
2012 536877.9962470002
2013 580279.0197017974
2014 616583.553718857
2015 668375.0239062726
2016 693937.1318342064