Year	kt
1990	83923.17025699999
1991	84903.210692
1992	79892.51386499999
1993	79441.779997
1994	83183.132545
1995	82864.32624
1996	87878.61423899999
1997	94349.14693799998
1998	96827.98958499999
1999	99739.648108
2000	98878.823393
2001	101714.43822
2002	105731.41947600001
2003	113375.84334799998
2004	118303.07768700001
2005	123372.37000000001
2006	132536.65000000002
2007	143521.59
2008	148142.32000000004
2009	144545.58999999997
2010	156681.794
2011	165799.027
2012	171440.70500000002
2013	177358.39899999998
2014	185899.33200000002
2015	184664.26200000002
2016	188833.48200000002
2017	191127.61199999996
2018	190905.4875
2019	189059.37
2020	181678.20700000005