| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.45 | 68 |
| 2015 | 2.45 | 80 |
| 2014 | 2.6 | 89 |
| 2013 | 3.208 | 81 |
| 2012 | 3.25 | 90 |
| 2011 | 3.25 | 93 |
| 2010 | 3.25 | 95 |
| 2009 | 3.25 | 102 |
| 2008 | 3.75 | 116 |
| 2007 | 4.25 | 101 |
| 2006 | 4.333 | 93 |
| 2005 | 4.917 | 70 |
| 2004 | 5 | 63 |
| 2003 | 5 | 76 |
| 2002 | 5 | 79 |
| 2001 | 5 | 90 |
| 2000 | 5 | 99 |
| 1999 | 5 | 99 |
| 1998 | 5 | 110 |
| 1997 | 5 | 109 |
| 1996 | 5.458 | 102 |
| 1995 | 5.5 | 103 |
| 1994 | 8.083 | 69 |
| 1993 | 7.75 | 73 |
| 1992 | 7.5 | 75 |
| 1991 | 7.5 | 73 |
| 1990 | 4.25 | 105 |
| 1989 | 4.25 | 104 |
| 1988 | 4.313 | 97 |
| 1987 | 5.333 | 86 |
| 1986 | 5.5 | 89 |