| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 3.38 | 149 |
| 2015 | 3.32 | 150 |
| 2014 | 3.3 | 150 |
| 2013 | 3.31 | 150 |
| 2012 | 3.33 | 150 |
| 2011 | 3.38 | 147 |
| 2010 | 3.44 | 143 |
| 2009 | 3.53 | 140 |
| 2008 | 3.63 | 134 |
| 2007 | 3.73 | 131 |
| 2006 | 3.81 | 129 |
| 2005 | 3.85 | 128 |
| 2004 | 3.87 | 127 |
| 2003 | 3.84 | 126 |
| 2002 | 3.76 | 128 |
| 2001 | 3.67 | 130 |
| 2000 | 3.6 | 131 |
| 1999 | 3.67 | 130 |
| 1998 | 3.75 | 124 |
| 1997 | 3.82 | 123 |
| 1996 | 3.86 | 117 |
| 1995 | 3.86 | 117 |
| 1994 | 3.89 | 116 |
| 1993 | 3.89 | 117 |
| 1992 | 3.87 | 117 |
| 1991 | 3.84 | 116 |
| 1990 | 3.84 | 114 |
| 1989 | 3.82 | 111 |
| 1988 | 3.84 | 110 |
| 1987 | 3.89 | 108 |
| 1986 | 3.95 | 106 |