Year	kt
1960	782596.1492772972
1961	557986.5831290939
1962	452874.13047516573
1963	448079.3603201736
1964	446876.9908104478
1965	486993.45039045473
1966	527841.5730129348
1967	444968.78418208886
1968	480419.51310431666
1969	574390.0169609269
1970	748386.2067986692
1971	853163.3642444382
1972	867219.6885212107
1973	889835.9367366517
1974	887835.7353012428
1975	1027898.411307428
1976	1033483.416947513
1977	1127590.210468233
1978	1239992.5853352747
1979	1272756.235933561
1980	1252037.6666235686
1981	1254806.2704728004
1982	1382750.329895892
1983	1466006.9906688235
1984	1608849.3008184612
1985	1758427.4439718085
1986	1845246.7082440197
1987	1978514.444355931
1988	2124804.9820886343
1989	2160851.8412404247
1990	2140144.3840043084
1991	2224036.7937622033
1992	2273739.1032291446
1993	2386107.9434369183
1994	2541605.063719201
1995	2729361.9904272105
1996	2823865.5013185265
1997	2779707.7311825613
1998	2605326.8217730233
1999	2556006.8247263893
2000	2594138.4550656355
2001	2657014.6493025897
2002	3013034.8754861057
2003	3571721.536529287
2004	4125844.8356212946
2005	4732303.717690153
2006	5247508.080024397
2007	5331096.470033938
2008	6162954.273223358
2009	6033383.812066667
2010	6967742.590266269
2011	7782223.5387275545
2012	7958937.078565699
2013	7884739.599602404
2014	7780252.783092055
2015	7755004.314903704
2016	7505111.76496613