Year	million ton-km
1995	11865
1996	13638
1997	14400
1998	12638
1999	14082
2000	14179
2001	14613
2002	15842
2003	18048
2004	18182.1
2005	19127
2006	20542
2007	21729
2008	22140
2009	20247
2010	21779.374
2011	21008
2012	22604
2013	22400
2014	24461
2015	25014
2016	27243
2017	30299
2018	34859
2019	33645.702256
2020	35963
2021	32920