| 时间 | 值 | 世界排名 |
|---|---|---|
| 2016 | 79.1 | 60 |
| 2015 | 79.1 | 60 |
| 2014 | 83.4 | 60 |
| 2013 | 93.4 | 59 |
| 2012 | 0 | 149 |
| 2011 | 0 | 150 |
| 2010 | 0 | 150 |
| 2006 | 0 | 136 |
| 2005 | 0 | 137 |
| 2004 | 0 | 146 |
| 2003 | 0 | 142 |
| 2002 | 0 | 141 |
| 2001 | 0 | 148 |
| 2000 | 0.5 | 143 |
| 1999 | 0.4 | 143 |
| 1998 | 0.5 | 138 |
| 1997 | 0.5 | 142 |
| 1994 | 15.7 | 90 |
| 1993 | 13.6 | 98 |
| 1992 | 16.5 | 82 |
| 1991 | 21.7 | 73 |
| 1990 | 29.6 | 67 |
| 1989 | 24.9 | 68 |
| 1988 | 24.8 | 69 |
| 1987 | 25.7 | 66 |
| 1986 | 24.5 | 65 |