Year	million ton-km
1992	19.8999996185
1993	26.8999996185
1994	24.8999996185
1995	34.4000015259
1996	27.6000003815
1997	33
1998	92.5
1999	58.2000007629
2000	47.211
2001	65.995
2002	75.954
2003	67.109
2004	34.361
2005	11.916
2006	15.746
2007	11.897
2008	12.032
2009	7.388
2010	7.8084
2011	9.5921
2012	13.0443
2013	17.9216
2014	385.14865
2015	686.94149
2016	732.789755
2017	61.6255
2018	44.0886
2019	1620.43791
2020	2030.37809
2021	3173.72377