Year	kt
1960	131753.72526493386
1961	164990.45603409671
1962	202028.9618999057
1963	242062.8057206479
1964	288890.06475047534
1965	332350.2012916788
1966	369224.0982397492
1967	405045.5124563326
1968	440489.40434109885
1969	476745.36410288245
1970	455184.5518327809
1971	510743.67385727307
1972	539782.2140887041
1973	573421.9747889482
1974	613003.9533673653
1975	671380.4002243659
1976	735428.4049319624
1977	782908.7352242245
1978	824672.3976612947
1979	882664.0246435667
1980	929275.2659408465
1981	983235.8275832941
1982	1031175.585009286
1983	1098033.328691939
1984	1171253.0179800563
1985	1276552.6337575053
1986	1255829.2305046986
1987	1418369.9810669646
1988	1505828.3105196941
1989	1530199.3930096105
1990	1563143.13579415
1991	1563499.3064940698
1992	1196241.320159779
1993	1180807.2811157831
1994	1116832.4568282834
1995	1123882.7589177412
1996	1137865.2576372342
1997	1122628.6894837157
1998	1130168.1248834857
1999	1149774.3809194095
2000	1212948.4261243986
2001	1264772.4690320701
2002	1275540.5162000188
2003	1361846.3391601457
2004	1413925.6914148955
2005	1469481.7562489752
2006	1542841.8934925438
2007	1612840.0578623686
2008	1683059.0720556055
2009	1659963.42103091
2010	1832564.2829180055
2011	1944105.7487536157
2012	1993650.1975117605
2013	2060338.4557510163
2014	2127599.54710899
2015	2093802.3931046242
2016	2135166.185886305