| 时间 | 值 （百万吨公里） | 世界排名 |
|---|---|---|
| 2016 | 224751.8 | 132 |
| 2015 | 23404.5 | 147 |
| 2014 | 688368 | 105 |
| 2013 | 1211208 | 91 |
| 2012 | 1285976 | 86 |
| 2011 | 1263117 | 89 |
| 2010 | 1583627 | 77 |
| 2009 | 1943949 | 66 |
| 2008 | 2111205 | 62 |
| 2007 | 2071648 | 61 |
| 2006 | 1944138 | 62 |
| 2005 | 1920516 | 59 |
| 2004 | 2013254 | 60 |
| 2003 | 1882981 | 58 |
| 2002 | 1704780 | 61 |
| 2001 | 1503427 | 64 |
| 2000 | 1396076 | 67 |
| 1999 | 1336700 | 68 |
| 1998 | 1346400 | 62 |
| 1997 | 1278100 | 64 |
| 1996 | 1214100 | 64 |
| 1995 | 1218900 | 63 |
| 1994 | 1233900 | 60 |
| 1993 | 1011000 | 67 |
| 1992 | 946800 | 69 |
| 1991 | 819700 | 68 |
| 1990 | 813700 | 66 |
| 1989 | 747700 | 69 |
| 1988 | 696900 | 73 |
| 1987 | 683700 | 68 |
| 1986 | 620500 | 70 |