Year million ton-km 1995 2262 1996 2321 1997 2608 1998 2673 1999 2221 2000 1917 2001 2049 2002 3890 2003 2591 2004 3164 2005 4804.55 2006 4232 2007 5739.5 2008 6529.4 2009 4200 2010 4874.75 2011 4832.9 2012 4372.5 2013 3022 2014 3987.75 2015 3754.625 2016 3255.5 2017 3125.5 2018 2598 2019 2865 2020 2747 2021 3123.5