Year	million ton-km
1992	249.2999992369
1993	223.69999307400002
1994	283.70000509169995
1995	309.9999987037
1996	303.10000383849996
1997	349.0999943017
1998	475.30000334979997
1999	497.7999964357
2000	568.433
2001	581.44
2002	595.434
2003	635.3390000000002
2004	557.775
2005	553.854
2006	638.043
2007	610.5770000000002
2008	677.2840000000001
2009	1046.595
2010	1442.4753737573708
2011	1856.063424874277
2012	2200.1270164194457
2013	2491.99200624933
2014	3205.3867130759427
2015	3774.700166808179
2016	4436.049423543849
2017	5124.778309146
2018	6249.296761544
2019	8670.018421743125
2020	8975.39858856
2021	12629.762558728002