| 时间 | 值 | 世界排名 |
|---|---|---|
| 2016 | 7.9951 | 95 |
| 2015 | 7.985 | 98 |
| 2014 | 7.9871 | 97 |
| 2013 | 7.9893 | 96 |
| 2012 | 7.9899 | 96 |
| 2011 | 8.0182 | 90 |
| 2010 | 8.0022 | 93 |
| 2009 | 7.9843 | 97 |
| 2008 | 8.0201 | 96 |
| 2007 | 8.0359 | 92 |
| 2006 | 8.0014 | 94 |
| 2005 | 8.0111 | 95 |
| 2004 | 8.0222 | 92 |
| 2003 | 8.0212 | 94 |
| 2002 | 8.0334 | 97 |
| 2001 | 8.0335 | 101 |
| 2000 | 8.0259 | 99 |
| 1999 | 7.9919 | 93 |
| 1998 | 7.9788 | 97 |
| 1997 | 7.9753 | 94 |
| 1996 | 7.9664 | 93 |
| 1995 | 7.9678 | 92 |
| 1994 | 7.9603 | 89 |
| 1993 | 7.9676 | 82 |
| 1992 | 7.9723 | 78 |
| 1991 | 8.0043 | 76 |
| 1990 | 8.021 | 71 |
| 1989 | 8.0339 | 67 |
| 1988 | 8.0406 | 67 |
| 1987 | 8.0098 | 66 |
| 1986 | 8.0132 | 64 |