Year	million ton-km
1970	9426.2002329826
1971	10278.099871635497
1972	11795.6999263762
1973	13727.200098037698
1974	14681.299915313999
1975	14572.500139713202
1976	16158.400345802405
1977	17819.4000949862
1978	19550.299753665702
1979	21091.999689102395
1980	21845.100397110204
1981	22780.000278473
1982	23051.1997642519
1983	25829.69994974131
1984	29497.399568557692
1985	29781.3001513481
1986	32611.299984932
1987	36586.7000370027
1988	40896.0999517442
1989	44251.200287819105
1990	45856.9003229141
1991	45769.8000602721
1992	48952.599719122205
1993	53101.20023208879
1994	60658.50043657448
1995	65226.00034285349
1996	70381.20004107071
1997	79824.0011950285
1998	77248.60033185799
1999	81438.2992057655
2000	87701.26899999999
2001	80972.76700000002
2002	84433.34499999999
2003	89174.10399999999
2004	98031.23200000005
2005	97562.03000000003
2006	101881.907
2007	105249.53899999998
2008	102673.29999999999
2009	113648.33765439602
2010	106942.59948079595
2011	106874.98572936661
2012	105464.12156689318
2013	103103.63219910087
2014	106118.33892501722
2015	105433.68959011645
2016	107845.21936711652
2017	119062.86673825896
2018	121294.71083192472
2019	120004.13819970998
2020	108805.26139637128
2021	130953.83678741354