Year	million ton-km
1995	3004
1996	2785
1997	3515
1998	4702
1999	5052
2000	4725
2001	4692.5
2002	5065
2003	4137
2004	5036.5
2005	6127.1
2006	6387.35
2007	6928
2008	8275.2
2009	5433
2010	6227.5
2011	6054.8
2012	5976
2013	4392.8
2014	4987.5
2015	4261.25
2016	3434
2017	3931
2018	3489
2019	3418.3
2020	3279
2021	3990