| 时间 | 值 | 世界排名 |
|---|---|---|
| 2016 | 21.6 | 77 |
| 2015 | 21.9 | 78 |
| 2014 | 21.7 | 78 |
| 2013 | 17.5 | 78 |
| 2012 | 14.9 | 81 |
| 2011 | 14.8 | 81 |
| 2010 | 15.9 | 77 |
| 2009 | 4.3 | 98 |
| 2008 | 17 | 79 |
| 2007 | 16.6 | 82 |
| 2006 | 23.7 | 75 |
| 2005 | 31.6 | 70 |
| 2004 | 21.4 | 87 |
| 2003 | 19.1 | 88 |
| 2002 | 17.9 | 89 |
| 2001 | 18.3 | 91 |
| 2000 | 12.6 | 98 |
| 1999 | 15.4 | 92 |
| 1998 | 18.8 | 87 |
| 1997 | 16.8 | 91 |
| 1996 | 16 | 100 |
| 1995 | 21 | 84 |
| 1994 | 24.2 | 77 |
| 1993 | 21.3 | 79 |
| 1992 | 20.2 | 76 |
| 1991 | 24.3 | 68 |
| 1990 | 14.6 | 90 |
| 1989 | 23.1 | 70 |
| 1988 | 13.9 | 89 |
| 1987 | 13.3 | 90 |
| 1986 | 7.7 | 101 |