| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2004 | 23.333 | 174 |
| 2003 | 23.12 | 170 |
| 2002 | 23.341 | 169 |
| 2001 | 23.166 | 169 |
| 2000 | 22.808 | 163 |
| 1999 | 26.829 | 158 |
| 1998 | 31.511 | 155 |
| 1997 | 31.587 | 150 |
| 1996 | 30.052 | 151 |
| 1995 | 30.858 | 148 |
| 1994 | 32.324 | 129 |
| 1993 | 30.739 | 123 |
| 1992 | 32.654 | 115 |
| 1991 | 36.031 | 108 |
| 1990 | 36.752 | 99 |
| 1989 | 38.221 | 87 |
| 1988 | 30.476 | 100 |
| 1987 | 32.184 | 98 |
| 1986 | 33.507 | 95 |