| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 49.598 | 150 |
| 2015 | 49.655 | 147 |
| 2014 | 49.717 | 144 |
| 2013 | 49.784 | 142 |
| 2012 | 49.855 | 140 |
| 2011 | 49.931 | 136 |
| 2010 | 50.01 | 127 |
| 2009 | 50.093 | 116 |
| 2008 | 50.178 | 114 |
| 2007 | 50.26 | 110 |
| 2006 | 50.332 | 102 |
| 2005 | 50.387 | 100 |
| 2004 | 50.423 | 97 |
| 2003 | 50.441 | 94 |
| 2002 | 50.448 | 94 |
| 2001 | 50.452 | 94 |
| 2000 | 50.46 | 93 |
| 1999 | 50.474 | 93 |
| 1998 | 50.493 | 93 |
| 1997 | 50.514 | 89 |
| 1996 | 50.533 | 84 |
| 1995 | 50.547 | 84 |
| 1994 | 50.555 | 84 |
| 1993 | 50.558 | 81 |
| 1992 | 50.558 | 83 |
| 1991 | 50.558 | 85 |
| 1990 | 50.558 | 85 |
| 1989 | 50.561 | 84 |
| 1988 | 50.565 | 82 |
| 1987 | 50.569 | 82 |
| 1986 | 50.568 | 82 |