Annual kt
1961 2916.1718394976747
1962 3607.355045130945
1963 4515.989146918503
1964 5684.787713747796
1965 7001.142245824644
1966 7902.01024417812
1967 9346.505482917317
1968 10757.156431509355
1969 13328.417254274924
1970 11018.57445142634
1971 11901.436296129597
1972 7957.222340572197
1973 9199.343983552968
1974 10582.876398196164
1975 11236.42347804143
1976 12505.298510255632
1977 14018.775958318356
1978 14393.323407586406
1979 15723.349043762737
1980 17133.634847639365
1981 19843.37098571126
1982 22702.161720940847
1983 24987.665544025465
1984 27296.100843595887
1985 30196.932619049436
1986 34920.816775124
1987 37427.99153757134
1988 42652.54626358584
1989 49405.866088653594
1990 54443.14709003407
1991 59449.85278943349
1992 65446.43389046988
1993 67475.86955946307
1994 72337.34257445243
1995 83982.71071649059
1996 87575.30869926575
1997 95742.73624095776
1998 98639.7461036637
1999 96640.88573665157
2000 101540.57787911726
2001 104869.46388230572
2002 117179.84484243207
2003 132219.07150436848
2004 139442.48659739512
2005 144980.43816871554
2006 147896.55759515963
2007 153893.13869619605
2008 168274.99636553953
2009 202228.86921551236
2010 223967.90892404967
2011 219652.96943197187
2012 205194.67350767567
2013 230904.68056100383
2014 222630.2394623781
2015 232976.15727022098
2016 234218.27891320176