| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 4.16 | 132 |
| 2015 | 4.07 | 132 |
| 2014 | 4.03 | 129 |
| 2013 | 4.03 | 129 |
| 2012 | 4.06 | 127 |
| 2011 | 4.1 | 127 |
| 2010 | 4.14 | 125 |
| 2009 | 4.23 | 123 |
| 2008 | 4.34 | 122 |
| 2007 | 4.45 | 117 |
| 2006 | 4.54 | 112 |
| 2005 | 4.59 | 111 |
| 2004 | 4.61 | 111 |
| 2003 | 4.57 | 112 |
| 2002 | 4.49 | 113 |
| 2001 | 4.38 | 112 |
| 2000 | 4.28 | 112 |
| 1999 | 4.23 | 110 |
| 1998 | 4.2 | 109 |
| 1997 | 4.18 | 110 |
| 1996 | 4.15 | 109 |
| 1995 | 4.1 | 109 |
| 1994 | 4.05 | 109 |
| 1993 | 3.98 | 112 |
| 1992 | 3.9 | 116 |
| 1991 | 3.82 | 117 |
| 1990 | 3.77 | 119 |
| 1989 | 3.75 | 118 |
| 1988 | 3.76 | 114 |
| 1987 | 3.79 | 112 |
| 1986 | 3.83 | 111 |