| 时间 | 值 | 世界排名 |
|---|---|---|
| 2016 | 25.3 | 73 |
| 2015 | 26.6 | 72 |
| 2014 | 30.8 | 74 |
| 2013 | 19.9 | 76 |
| 2012 | 11.1 | 84 |
| 2011 | 16.7 | 80 |
| 2010 | 18 | 75 |
| 2009 | 22.4 | 75 |
| 2008 | 27.2 | 74 |
| 2007 | 32.6 | 69 |
| 2006 | 39.4 | 68 |
| 2005 | 38.8 | 68 |
| 2004 | 40.6 | 72 |
| 2003 | 36.2 | 76 |
| 2002 | 27.3 | 78 |
| 2001 | 26 | 82 |
| 2000 | 32.2 | 79 |
| 1999 | 26.2 | 82 |
| 1998 | 24.7 | 83 |
| 1997 | 23.1 | 83 |
| 1996 | 22.2 | 81 |
| 1995 | 25.6 | 78 |
| 1994 | 21.8 | 81 |
| 1993 | 24 | 73 |
| 1992 | 26.1 | 73 |
| 1991 | 22.4 | 71 |
| 1990 | 15 | 88 |
| 1989 | 17.3 | 86 |
| 1988 | 17.2 | 74 |
| 1987 | 16.3 | 84 |
| 1986 | 17 | 73 |