Annual kt
1966 55710.2006602693
1967 68229.2832560468
1968 89179.3536334222
1969 103867.051622317
1970 139091.480762223
1971 172113.321421913
1972 211884.482051828
1973 240648.362461846
1974 262142.002232797
1975 279244.832825025
1976 306910.182310676
1977 306459.51483789
1978 321652.642014188
1979 341975.96534899
1980 335976.979941128
1981 336343.115200763
1982 304979.405575437
1983 318539.797580101
1984 342436.47178915
1985 356463.881443768
1986 332184.590364877
1987 345908.157211091
1988 345773.115962912
1989 401691.446146461
1990 417457.511871385
1991 453586.672478003
1992 449147.404534652
1993 458712.965533224
1994 456087.125259106
1995 496357.364757133
1996 540831.155282213
1997 533306.688614363
1998 554868.061833105
1999 573587.671795566
2000 591119.843812647
2001 612578.281234266
2002 618478.708176479
2003 648969.761795617
2004 669990.722079465
2005 696437.869383068
2006 694904.861261633
2007 686761.904453532
2008 703569.849612285
2009 663557.234759295
2010 711297.386953427
2011 648631.5441765
2012 637345.369277687
2013 629551.65892411
2014 549316.881345415