Year	kt
1992	101938.933
1993	97149.831
1994	90604.236
1995	88609.388
1996	87164.59
1997	89163.105
1998	82954.874
1999	73083.31
2000	86471.527
2001	84223.656
2002	80475.982
2003	81964.784
2004	75485.195
2005	79020.183
2006	81704.427
2007	82668.848
2008	76361.608
2009	69419.977
2010	72683.607
2011	70996.787
2012	67036.427
2013	66028.002
2014	61935.63
2015	63182.41
2016	63915.81