| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.45 | 70 |
| 2015 | 2.45 | 79 |
| 2014 | 2.6 | 91 |
| 2013 | 3.208 | 78 |
| 2012 | 3.25 | 91 |
| 2011 | 3.25 | 95 |
| 2010 | 3.25 | 97 |
| 2009 | 3.25 | 104 |
| 2008 | 3.75 | 115 |
| 2007 | 4.25 | 97 |
| 2006 | 4.333 | 91 |
| 2005 | 4.917 | 71 |
| 2004 | 5 | 62 |
| 2003 | 5 | 71 |
| 2002 | 5 | 77 |
| 2001 | 5 | 89 |
| 2000 | 5 | 100 |
| 1999 | 5 | 104 |
| 1998 | 5 | 106 |
| 1997 | 5 | 107 |
| 1996 | 5.458 | 103 |
| 1995 | 5.5 | 105 |
| 1994 | 8.083 | 71 |
| 1993 | 7.75 | 75 |
| 1992 | 7.5 | 74 |
| 1991 | 7.5 | 74 |
| 1990 | 7.75 | 70 |
| 1989 | 8 | 67 |
| 1988 | 7.813 | 57 |
| 1987 | 7.792 | 53 |
| 1986 | 8.104 | 56 |