| 时间 | 值 | 世界排名 |
|---|---|---|
| 2016 | 8.3 | 87 |
| 2015 | 7.4 | 89 |
| 2014 | 41.5 | 68 |
| 2013 | 32.4 | 71 |
| 2012 | 53.7 | 65 |
| 2011 | 53.4 | 62 |
| 2010 | 53.2 | 64 |
| 2001 | 7.4 | 105 |
| 2000 | 12.3 | 107 |
| 1999 | 13.7 | 101 |
| 1998 | 13.5 | 97 |
| 1997 | 15.3 | 98 |
| 1996 | 16.4 | 98 |
| 1995 | 15.3 | 99 |
| 1994 | 14.4 | 97 |
| 1993 | 14.2 | 96 |
| 1992 | 15.2 | 94 |
| 1991 | 16.1 | 84 |
| 1990 | 17.7 | 79 |
| 1989 | 18 | 85 |
| 1988 | 15.9 | 85 |
| 1987 | 16.3 | 81 |
| 1986 | 16.5 | 80 |