Year	kt
1990	281986.53
1991	298836.76999999996
1992	310019.92
1993	309791.18000000005
1994	295781.73000000004
1995	300168.48
1996	319586.84
1997	321642.43299999996
1998	330029.15
1999	339086.2199999999
2000	355972.766
2001	364006.3
2002	358228.8000000001
2003	360578.4
2004	375386.29999999993
2005	375055.23
2006	385155.26
2007	387040.11999999994
2008	392838.39
2009	378407.16000000003
2010	400194.94999999995
2011	411020.56999999995
2012	397276.85000000003
2013	413788.91
2014	425235.39999999997
2015	425262.9
2016	451539.2
2017	471480.39999999997
2018	470381.4
2019	478944.5999999999
2020	465301.4