| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.45 | 67 |
| 2015 | 2.45 | 82 |
| 2014 | 2.6 | 93 |
| 2013 | 3.208 | 80 |
| 2012 | 3.25 | 89 |
| 2011 | 3.25 | 94 |
| 2010 | 3.25 | 99 |
| 2009 | 3.25 | 107 |
| 2008 | 3.75 | 111 |
| 2007 | 4.25 | 100 |
| 2006 | 4.333 | 89 |
| 2005 | 4.917 | 66 |
| 2004 | 5 | 61 |
| 2003 | 5 | 72 |
| 2002 | 5 | 75 |
| 2001 | 5 | 86 |
| 2000 | 5 | 96 |
| 1999 | 5 | 100 |
| 1998 | 5 | 107 |
| 1997 | 5 | 105 |
| 1996 | 5.458 | 106 |
| 1995 | 5.5 | 104 |
| 1994 | 8.083 | 70 |
| 1993 | 7.75 | 71 |
| 1992 | 7.5 | 71 |
| 1991 | 7.5 | 76 |
| 1990 | 6.5 | 85 |
| 1989 | 6.5 | 80 |
| 1988 | 6.333 | 74 |
| 1987 | 7.875 | 52 |
| 1986 | 8.25 | 55 |