Annual kt
1960 337838.425243189
1961 378217.624289164
1962 447388.947872269
1963 526611.835864223
1964 610902.431251044
1965 684433.974640282
1966 759883.595492313
1967 838603.381198943
1968 923035.474103512
1969 1007084.99964528
1970 1154546.37573297
1971 1241887.02872456
1972 1355132.20876148
1973 1470332.15080284
1974 1420215.82627634
1975 1323798.36955371
1976 1457476.83928307
1977 1391947.76661976
1978 1469624.6632141
1979 1519023.01885425
1980 1456627.85417659
1981 1325449.17392743
1982 1249664.15155185
1983 1197671.674753
1984 1145411.92486508
1985 1131854.36640538
1986 1158848.94840224
1987 1185246.09643528
1988 1188191.34106395
1989 1238433.44116177
1990 1197603.54631853
1991 1237159.96350205
1992 1239724.692
1993 1239677.021
1994 1227883.949
1995 1256343.536
1996 1292368.144
1997 1280960.107
1998 1312070.935
1999 1286552.282
2000 1258811.427
2001 1306005.717
2002 1292445.151
2003 1290024.931
2004 1286548.615
2005 1272155.64
2006 1258356.719
2007 1205914.952
2008 1203557.071
2009 1141405.088
2010 1115255.711
2011 1073547.253
2012 1021754.545
2013 1006936.198
2014 993291.291