Year	kt
1992	1595.145
1993	1345.789
1994	1613.48
1995	1657.484
1996	1708.822
1997	1763.827
1998	2156.196
1999	2134.194
2000	3303.967
2001	3248.962
2002	3102.282
2003	2852.926
2004	3406.643
2005	3138.952
2006	3318.635
2007	3545.989
2008	4103.373
2009	4400.4
2010	4462.739
2011	4422.402
2012	4110.707
2013	4008.031
2014	4096.039
2015	4257.387
2016	4840.44