| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2004 | -.986 | 161 |
| 2003 | -1.815 | 156 |
| 2002 | 5.589 | 53 |
| 2001 | 6.967 | 27 |
| 2000 | -11.219 | 156 |
| 1999 | -11.184 | 158 |
| 1998 | -8.494 | 156 |
| 1997 | -6.317 | 149 |
| 1996 | 2.231 | 111 |
| 1995 | 0.042 | 110 |
| 1994 | 11.591 | 10 |
| 1993 | 5.742 | 39 |
| 1992 | 1.784 | 83 |
| 1991 | 6.561 | 25 |
| 1990 | -7.435 | 107 |
| 1989 | 6.129 | 30 |
| 1988 | 0.53 | 94 |
| 1987 | 4.268 | 50 |
| 1986 | 2.633 | 68 |