Annual kt
1960 4546.652443103144
1961 4281.2262464246905
1962 3455.4558567583895
1963 3445.6252568814093
1964 4517.160643472204
1965 4035.4612495001966
1966 4223.3871410210395
1967 4891.018597739821
1968 4792.210141219825
1969 5982.852042285782
1970 6813.529020057694
1971 6492.136141753085
1972 8068.233119849915
1973 8463.73474337197
1974 9852.934195993188
1975 12260.550329183694
1976 10021.022385990062
1977 10218.773197751088
1978 9788.665182170855
1979 9843.046655405135
1980 10559.89334803886
1981 11987.974385747439
1982 14073.269188214632
1983 14755.66945103038
1984 16174.86420050951
1985 15517.188584897227
1986 17979.76344636276
1987 19339.619042553557
1988 18909.410181213196
1989 18850.055506304863
1990 18221.885196858333
1991 19428.763586661113
1992 17326.618850324307
1993 19626.61250302223
1994 21228.190674633835
1995 20335.189512280696
1996 23582.025260184233
1997 22480.33360880291
1998 25292.804040846317
1999 24875.062318642977
2000 28182.993863067088
2001 29863.67567565261
2002 31898.95220592236
2003 31617.219416529417
2004 32313.65539566739
2005 34709.784778435795
2006 35654.60002286074
2007 37344.55306314658
2008 35031.21676880717
2009 29888.975347708056
2010 33121.6568065894
2011 27279.787712946538
2012 25835.592165165748
2013 24808.177882851895
2014 29601.826920073367
2015 31239.927704332018
2016 29558.324317669718