Year	kt
1960	152681.26005938445
1961	196331.1039478191
1962	243447.9577086863
1963	290429.23062637507
1964	349606.45169742947
1965	404164.08709466277
1966	447302.2104224621
1967	490385.15708088863
1968	529472.0129276982
1969	573807.8821245886
1970	550190.5905937843
1971	611654.2353524806
1972	642237.9495361708
1973	689401.625456939
1974	738720.4959203135
1975	805992.6381316362
1976	884807.6013467347
1977	951536.941490885
1978	1033650.6655459133
1979	1090613.277671267
1980	1150762.7534995493
1981	1214535.6071818187
1982	1284609.68801873
1983	1383358.0202853936
1984	1537162.3971774015
1985	1675596.9054612142
1986	1649545.5972785861
1987	1882065.0623149013
1988	2014417.5195405656
1989	2104112.221900483
1990	2138130.205995783
1991	2192447.19772902
1992	1756091.8768018463
1993	1741399.7173382617
1994	1681595.5087728347
1995	1728233.9464468095
1996	1783223.45058104
1997	1775314.522730062
1998	1779584.941977264
1999	1878909.816555204
2000	1914214.3063122607
2001	1982194.6461476698
2002	2034843.0783455537
2003	2194506.550061205
2004	2298198.814336804
2005	2413858.836319039
2006	2506776.91136975
2007	2617592.5487929946
2008	2708022.1908436147
2009	2683011.593056898
2010	2934010.878294168
2011	3065298.564889605
2012	3086675.5745024625
2013	3157239.429512685
2014	3238415.9305301434
2015	3270022.4621956917
2016	3332605.970822225