Year	million ton-km
1970	275.200012207
1971	302.200012207
1972	282.200012207
1973	406.3999938965
1974	437.6000061035
1975	396.6000061035
1976	443.8999938965
1977	503.8999938965
1978	490.1000061035
1979	483.1000061035
1980	522.9000244141
1981	475.700012207
1982	566
1983	614.4000244141
1984	689.4000244141
1985	756.5999755859
1986	844.0999755859
1987	911.5999755859
1988	1029.1999511719
1989	1118.6999511719
1990	1171.3000488281
1991	1227.6999511719
1992	1270.4000244141
1993	1334.9000244141
1994	1368.5
1995	1469.5999755859
1996	1459.0999755859
1997	1443.3000488281
1998	1475.9000244141
1999	1614.5999755859
2000	1748.406
2001	1521.024
2002	1393.803
2003	1373.956
2004	1393.038
2005	1365.128
2006	1377.204
2007	1549.939
2008	1279.021
2009	400
2010	784.96985
2011	760.26837
2012	795.11615
2013	892.930674
2014	989.179882
2015	945.2649666
2016	1083.244836
2017	1437.245062
2018	1418.004731
2019	1344.955151
2020	978.76063
2021	1150.691582