Year	million ton-km
1995	12889
1996	11914
1997	11654
1998	9857
1999	9924
2000	10621
2001	10492
2002	10784
2003	11057
2004	10641
2005	10108
2006	10554
2007	10927
2008	11566
2009	9273
2010	9452
2011	9996
2012	10271
2013	10459
2014	9564
2015	9479
2016	8414
2017	8229
2018	7878
2019	7357
2020	6652
2021	6757