Year	million ton-km
1995	7613
1996	8506
1997	9835
1998	9824
1999	9102
2000	8696
2001	8987
2002	9445
2003	10989
2004	11603
2005	12262
2006	12628
2007	12871
2008	12025
2009	10649
2010	12112
2011	12198
2012	10583
2013	9746
2014	8893
2015	8274
2016	8529
2017	8377