Year	million ton-km
1994	501.1000057908001
1995	594.1000019834
1996	578.5000060426
1997	576.8999940454
1998	573.1000053063001
1999	799.8999972194
2000	854.722
2001	833.873
2010	1109.022848301877
2011	1012.8979294612557
2012	893.300849063391
2013	821.9863926200001
2018	1118.558412106966
2019	941.7069642581666