| 时间 | 值 （百万吨公里） | 世界排名 |
|---|---|---|
| 2016 | 40051283.6 | 22 |
| 2015 | 37023423.9 | 22 |
| 2014 | 34897404 | 22 |
| 2013 | 25540880 | 28 |
| 2012 | 28540727.4 | 25 |
| 2011 | 26326620.8 | 25 |
| 2010 | 22575356 | 25 |
| 2009 | 10480898 | 32 |
| 2008 | 9508389 | 33 |
| 2007 | 8818150 | 34 |
| 2006 | 8304634 | 33 |
| 2005 | 8056829 | 32 |
| 2004 | 7387965 | 36 |
| 2003 | 6457529 | 36 |
| 2002 | 6449022 | 36 |
| 2001 | 6416383 | 39 |
| 2000 | 5756288 | 40 |
| 1999 | 5024000 | 42 |
| 1998 | 6731600 | 35 |
| 1997 | 7474600 | 31 |
| 1996 | 7263100 | 31 |
| 1995 | 7179600 | 28 |
| 1994 | 6851500 | 28 |
| 1993 | 6526200 | 27 |
| 1992 | 6136500 | 27 |
| 1991 | 5438100 | 28 |
| 1990 | 5638700 | 27 |
| 1989 | 5715200 | 27 |
| 1988 | 5719500 | 26 |
| 1987 | 5247300 | 27 |
| 1986 | 4879600 | 27 |