Year	kt
1960	839101.5547739298
1961	895394.4797942404
1962	970462.0455497482
1963	1042116.6058402351
1964	1131258.2727255977
1965	1210919.000792481
1966	1316851.3029604768
1967	1394617.8034884974
1968	1535525.221978663
1969	1665331.3941081632
1970	1872330.4335894266
1971	2044015.5760269386
1972	2190175.8667128417
1973	2389609.5343777165
1974	2545975.5002723117
1975	2688491.791277959
1976	2848241.7659356454
1977	3006312.1167316525
1978	3211614.150812521
1979	3314970.857485262
1980	3377624.5416819295
1981	3392357.3603212456
1982	3451738.4604336065
1983	3474790.988422185
1984	3443951.113438541
1985	3523900.383886573
1986	3597391.149805044
1987	3507450.7998259813
1988	3605888.3132723733
1989	3685280.4603264816
1990	3559288.036500615
1991	3660405.743982072
1992	3212805.623725849
1993	3196064.66245954
1994	3052211.763338843
1995	3141768.846321792
1996	3215679.039096977
1997	3328699.0906824353
1998	3399854.1342402454
1999	3475274.5023885895
2000	3584316.531039871
2001	3641706.8785745134
2002	3604608.1313587436
2003	3764226.491664561
2004	3949048.9140783404
2005	3975479.4781126427
2006	4080167.5266671395
2007	4129171.9255169467
2008	4382017.010619436
2009	4431560.567437447
2010	4608838.2489782395
2011	4762134.6042085085
2012	4926005.778
2013	5055857.915
2014	5208573.796999998
2015	5266222.704000002
2016	5390200.307000005