Year	million ton-km
1995	3175
1996	2929.5
1997	2705.5
1998	2671.5
1999	2433
2000	3612
2001	4520
2002	4573
2003	2882.5
2004	2846
2005	2915.5
2007	3115
2008	6187
2011	1225
2012	492.2405
2013	472.1205
2014	1090
2015	1997.5
2016	4774