Year	kt
1960	256915.89381860726
1961	267300.1169321343
1962	281698.0454036404
1963	297674.21265112143
1964	300942.59864789125
1965	322288.1019999747
1966	322733.61704036273
1967	329277.6445675723
1968	344265.25169665477
1969	348716.19665510627
1970	356631.43808211223
1971	371129.4028626453
1972	380931.9169068366
1973	387947.4466706686
1974	405622.88265443925
1975	433428.5922935938
1976	455185.772774155
1977	475068.2039320096
1978	475051.3898879656
1979	511764.8550581805
1980	542206.1817247759
1981	587522.7868519907
1982	618089.7428379945
1983	660670.5379155041
1984	699851.9239258616
1985	753673.7554263277
1986	802010.5844304163
1987	838432.7558946254
1988	879508.5063675964
1989	903546.2567124466
1990	931391.3849965333
1991	989989.3842192891
1992	992213.287402536
1993	1058984.5793235437
1994	1111085.6039401311
1995	1150473.9123166467
1996	1218222.6306445566
1997	1270443.7037049606
1998	1272124.4147768752
1999	1329355.5245532836
2000	1376566.9856088187
2001	1395625.4307381203
2002	1415284.1092609374
2003	1510024.9958326917
2004	1612863.5225428194
2005	1698199.778706276
2006	1819758.8182027745
2007	1957704.898095067
2008	2114236.168198244
2009	2193794.647808893
2010	2170660.0619808133
2011	2375832.5395162404
2012	2550473.3388999538
2013	2374946.55150629
2014	2561388.1156593543
2015	2662103.381114635
2016	2807075.183675032