| 时间 | 值 （百万吨公里） | 世界排名 |
|---|---|---|
| 2016 | 6743.6 | 153 |
| 2015 | 6010.8 | 154 |
| 2014 | 5856 | 155 |
| 2013 | 5856 | 155 |
| 2012 | 53519 | 149 |
| 2011 | 82709.5 | 145 |
| 2010 | 91520.2 | 142 |
| 2009 | 157007 | 128 |
| 2008 | 159917 | 126 |
| 2007 | 154837 | 125 |
| 2006 | 145747 | 127 |
| 2005 | 132275 | 127 |
| 2004 | 122477 | 133 |
| 2003 | 108854 | 134 |
| 2002 | 104711 | 131 |
| 2001 | 112560 | 130 |
| 2000 | 115831 | 133 |
| 1999 | 112300 | 132 |
| 1998 | 157700 | 126 |
| 1997 | 158300 | 127 |
| 1996 | 152500 | 128 |
| 1995 | 148700 | 126 |
| 1994 | 141600 | 129 |
| 1993 | 132100 | 126 |
| 1992 | 121400 | 125 |
| 1991 | 120100 | 119 |
| 1990 | 120300 | 118 |
| 1989 | 121200 | 116 |
| 1988 | 115800 | 116 |
| 1987 | 114200 | 117 |
| 1986 | 140200 | 112 |