| 时间 | 值 （百万吨公里） | 世界排名 |
|---|---|---|
| 2016 | 25859917.9 | 30 |
| 2015 | 27011761.5 | 29 |
| 2014 | 27923164 | 27 |
| 2013 | 27503416 | 26 |
| 2012 | 26386306.6 | 27 |
| 2011 | 24866065 | 26 |
| 2010 | 22146864 | 26 |
| 2009 | 14701206 | 26 |
| 2008 | 14352757 | 25 |
| 2007 | 12298456 | 28 |
| 2006 | 10647142 | 28 |
| 2005 | 9662619 | 30 |
| 2004 | 9287315 | 31 |
| 2003 | 10118096 | 30 |
| 2002 | 13295500 | 24 |
| 2001 | 16914823 | 17 |
| 2000 | 17268093 | 18 |
| 1999 | 16209000 | 16 |
| 1998 | 14298900 | 18 |
| 1997 | 12481600 | 22 |
| 1996 | 10468300 | 23 |
| 1995 | 9859000 | 23 |
| 1994 | 9338200 | 24 |
| 1993 | 9152000 | 24 |
| 1992 | 8255700 | 24 |
| 1991 | 7973600 | 22 |
| 1990 | 8603400 | 20 |
| 1989 | 8229500 | 22 |
| 1988 | 7483500 | 22 |
| 1987 | 7213900 | 21 |
| 1986 | 6707800 | 19 |