| 时间 | 值 | 世界排名 |
|---|---|---|
| 2014 | 3.3 | 89 |
| 2013 | 2.9 | 110 |
| 2012 | 3 | 111 |
| 2011 | 2.3 | 124 |
| 2010 | 3.8 | 106 |
| 2009 | 3.1 | 116 |
| 2008 | 2 | 115 |
| 2007 | 2.2 | 121 |
| 2006 | 1.8 | 127 |
| 2005 | 1.6 | 128 |
| 2004 | 2.1 | 113 |
| 2003 | 2.8 | 89 |
| 2002 | 2.7 | 87 |
| 2001 | 2.3 | 91 |
| 2000 | 1.6 | 118 |
| 1999 | 1.8 | 114 |
| 1998 | 1.5 | 113 |
| 1997 | 1.8 | 107 |
| 1996 | 1.9 | 99 |
| 1995 | 1.9 | 93 |
| 1994 | 2 | 97 |
| 1993 | 2.4 | 75 |
| 1992 | 2.5 | 67 |
| 1991 | 2.4 | 68 |
| 1990 | 1.7 | 80 |
| 1989 | 3.2 | 44 |
| 1988 | 4.4 | 21 |
| 1987 | 4 | 36 |
| 1986 | 5.9 | 17 |