Year	million ton-km
1995	13715
1996	13909
1997	14199
1998	14714
1999	15039
2000	16602
2001	16895
2002	17132
2003	16869
2004	17931
2005	17064
2006	20980
2007	21371
2008	21915
2009	17767
2010	19833
2011	20345
2012	19499
2013	19564
2014	20746
2015	20814
2016	21361
2017	22256
2018	21996.241
2019	21736
2020	20498.028
2021	21780.869