| 时间 | 值 （百万吨公里） | 世界排名 |
|---|---|---|
| 2016 | 94142377 | 10 |
| 2015 | 102039359 | 7 |
| 2014 | 100403628 | 6 |
| 2013 | 95591641 | 6 |
| 2012 | 94752568 | 6 |
| 2011 | 87860363 | 7 |
| 2010 | 74627064 | 7 |
| 2009 | 67945578 | 7 |
| 2008 | 58763225 | 8 |
| 2007 | 45286990 | 12 |
| 2006 | 40945038 | 11 |
| 2005 | 37661733 | 11 |
| 2004 | 35263795 | 11 |
| 2003 | 32372040 | 12 |
| 2002 | 35889538 | 9 |
| 2001 | 34285574 | 9 |
| 2000 | 31287784 | 11 |
| 1999 | 28205300 | 11 |
| 1998 | 28091100 | 9 |
| 1997 | 24307000 | 11 |
| 1996 | 22011500 | 13 |
| 1995 | 20196100 | 13 |
| 1994 | 17898600 | 14 |
| 1993 | 16535600 | 13 |
| 1992 | 16388500 | 13 |
| 1991 | 19153100 | 10 |
| 1990 | 19149600 | 9 |
| 1989 | 19410800 | 7 |
| 1988 | 17010900 | 9 |
| 1987 | 17068600 | 6 |
| 1986 | 17194700 | 6 |