Year	kt
1960	977329.1501584342
1961	1032102.791188866
1962	1133989.0069774913
1963	1228043.3355017789
1964	1351789.3091867827
1965	1442574.0434289747
1966	1570350.2620620755
1967	1677850.9952918652
1968	1821862.343908427
1969	1992215.183497353
1970	2080090.8056813304
1971	2236653.967870605
1972	2355740.026423213
1973	2434154.2595751393
1974	2464995.9706908762
1975	2473148.5997170913
1976	2618571.2833733913
1977	2661513.395100198
1978	2799389.432402401
1979	2949966.8360080956
1980	3037974.1240506186
1981	3090164.415425516
1982	3029263.8575882013
1983	3075650.5353827486
1984	3330154.249041112
1985	3472327.7429223615
1986	3411783.936068133
1987	3690359.639228792
1988	3885823.2526614326
1989	4082069.6521838773
1990	4237095.42630304
1991	4394438.364913461
1992	4045055.412608612
1993	4151669.877433084
1994	4159146.164575398
1995	4280835.927497054
1996	4450212.670386963
1997	4464488.337314664
1998	4493665.635987141
1999	4706483.315294552
2000	4838354.206114128
2001	4867044.322709768
2002	5001784.1484542005
2003	5200906.139501222
2004	5348647.1701209815
2005	5509524.737963432
2006	5634269.973967368
2007	5855245.027410821
2008	6011683.525302914
2009	5902905.449358245
2010	6362935.097041102
2011	6496773.560355891
2012	6603953.622238413
2013	6711986.180879339
2014	6774278.0073348405
2015	7146572.79793599
2016	7322549.21730787