Year	kt
1960	594175.0360246619
1961	644675.4866349241
1962	726113.1006826424
1963	793987.8622793801
1964	855763.1902312929
1965	917786.0154907053
1966	984582.7888147777
1967	1078043.2720668125
1968	1157473.4079537007
1969	1246764.9365594082
1970	1370871.0864200664
1971	1468841.5206087616
1972	1596891.127568914
1973	1724654.7376404004
1974	1834279.545042246
1975	1941126.8826599286
1976	2006180.1749511703
1977	2095246.206010045
1978	2244146.086142002
1979	2246637.559037498
1980	2282618.1676077805
1981	2290301.584020603
1982	2309886.870954076
1983	2304238.4324029167
1984	2248353.540369496
1985	2275836.7413822906
1986	2293645.5476419325
1987	2075902.916443906
1988	2042732.7772987864
1989	2028922.4275403062
1990	1937821.418619768
1991	1910635.2143759732
1992	1100560.0271091152
1993	989338.8718613866
1994	794975.196991965
1995	777601.235914113
1996	731415.957028093
1997	699602.5209454433
1998	690438.357652
1999	663351.6609802365
2000	663344.1462911888
2001	669611.3969568155
2002	668285.0543399291
2003	678820.6483845436
2004	689390.0585298716
2005	676592.5430819558
2006	702769.5825530583
2007	707977.5155831226
2008	725424.2749999999
2009	697998.7819999999
2010	696509.98
2011	746087.8200000001
2012	741115.368
2013	711394.333
2014	724122.4899999999
2015	721991.9630000001
2016	770741.0609999999