Year	million ton-km
1970	9360.9002348186
1971	10215.699873089803
1972	11734.6999232543
1973	13683.8000953942
1974	14687.799911357799
1975	14637.300141371703
1976	16268.600346937805
1977	18014.5001008067
1978	19894.9997750669
1979	21665.099676966896
1980	22489.0003802776
1981	23552.400299012603
1982	23942.8997464706
1983	26932.299945987805
1984	30706.699556521897
1985	30985.3001426087
1986	33994.0000270976
1987	38155.70010749259
1988	42688.800022051
1989	46458.70027844622
1990	47899.60028783981
1991	47762.40014187971
1992	51795.3996562662
1993	57711.90013878071
1994	65853.2004488859
1995	71346.20029269923
1996	77042.19996774223
1997	89021.701101333
1998	88278.67443426182
1999	94228.81833131949
2000	102135.90500000003
2001	95045.22700000003
2002	100918.682
2003	106355.62299999999
2004	118136.21499999998
2005	119827.98599999999
2006	126563.12799999997
2007	132244.82100000003
2008	132336.294
2009	146924.56065439605
2010	147480.74552740683
2011	148863.18096440018
2012	141618.0807639224
2013	140798.44826285657
2014	147148.54642314065
2015	148463.88144407733
2016	153965.22550511608
2017	166256.69236969587
2018	170690.3537903442
2019	166288.4175848463
2020	141947.41413242833
2021	170689.48886822132