| 时间 | 值 （百万吨公里） | 世界排名 |
|---|---|---|
| 2016 | 1042929.4 | 96 |
| 2015 | 1039810 | 98 |
| 2014 | 1216152 | 91 |
| 2013 | 1218000 | 90 |
| 2012 | 1310276.4 | 84 |
| 2011 | 1424420.2 | 83 |
| 2010 | 1554309 | 80 |
| 2009 | 747969 | 98 |
| 2008 | 813010 | 93 |
| 2007 | 800207 | 93 |
| 2006 | 754912 | 93 |
| 2005 | 778260 | 88 |
| 2004 | 714000 | 95 |
| 2003 | 1428487 | 70 |
| 2002 | 1286925 | 71 |
| 2001 | 1369069 | 69 |
| 2000 | 1426114 | 66 |
| 1999 | 1371300 | 65 |
| 1998 | 1245200 | 63 |
| 1997 | 1250000 | 65 |
| 1996 | 1098000 | 69 |
| 1995 | 1050000 | 72 |
| 1994 | 1000000 | 72 |
| 1993 | 955000 | 70 |
| 1992 | 913500 | 71 |
| 1991 | 870000 | 64 |
| 1990 | 755000 | 72 |
| 1989 | 740000 | 72 |
| 1988 | 700000 | 70 |
| 1987 | 582000 | 74 |
| 1986 | 600000 | 74 |