| 时间 | 值 （百万吨公里） | 世界排名 |
|---|---|---|
| 2016 | 34969109.7 | 25 |
| 2015 | 33585396.9 | 24 |
| 2014 | 33643518.4 | 24 |
| 2013 | 31729241 | 23 |
| 2012 | 29138458.3 | 24 |
| 2011 | 26509929.1 | 24 |
| 2010 | 24859825.2 | 24 |
| 2009 | 18427473 | 23 |
| 2008 | 21050204 | 21 |
| 2007 | 20671341 | 23 |
| 2006 | 19565884 | 21 |
| 2005 | 17744017 | 22 |
| 2004 | 16995621 | 22 |
| 2003 | 14172367 | 21 |
| 2002 | 17256872 | 19 |
| 2001 | 16373648 | 20 |
| 2000 | 16704341 | 19 |
| 1999 | 15282600 | 19 |
| 1998 | 13331100 | 21 |
| 1997 | 12980700 | 20 |
| 1996 | 11840700 | 21 |
| 1995 | 10779300 | 22 |
| 1994 | 9929400 | 23 |
| 1993 | 9271200 | 23 |
| 1992 | 8477300 | 23 |
| 1991 | 7745500 | 23 |
| 1990 | 7046400 | 23 |
| 1989 | 6659900 | 24 |
| 1988 | 6046900 | 25 |
| 1987 | 5248400 | 26 |
| 1986 | 4990300 | 26 |