| 时间 | 值 （百万吨公里） | 世界排名 |
|---|---|---|
| 2016 | 5220218 | 58 |
| 2015 | 5313756 | 53 |
| 2014 | 5171496 | 51 |
| 2013 | 4626648 | 58 |
| 2012 | 5861787 | 48 |
| 2011 | 5590998 | 48 |
| 2010 | 6028980 | 47 |
| 2009 | 5215512 | 44 |
| 2004 | 2284547 | 58 |
| 2003 | 1850491 | 59 |
| 2002 | 1255713 | 73 |
| 2001 | 1250076 | 73 |
| 2000 | 1382461 | 68 |
| 1999 | 1307000 | 69 |
| 1998 | 1207000 | 66 |
| 1997 | 1164600 | 68 |
| 1996 | 1200300 | 66 |
| 1995 | 1072500 | 70 |
| 1994 | 1150600 | 65 |
| 1993 | 1080000 | 63 |
| 1992 | 981100 | 66 |
| 1991 | 875500 | 62 |
| 1990 | 770900 | 69 |
| 1989 | 752800 | 67 |
| 1988 | 698400 | 71 |
| 1987 | 621500 | 71 |
| 1986 | 647400 | 68 |