| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 49.977 | 125 |
| 2015 | 49.966 | 127 |
| 2014 | 49.955 | 128 |
| 2013 | 49.943 | 132 |
| 2012 | 49.931 | 134 |
| 2011 | 49.919 | 137 |
| 2010 | 49.908 | 138 |
| 2009 | 49.897 | 138 |
| 2008 | 49.888 | 138 |
| 2007 | 49.879 | 137 |
| 2006 | 49.87 | 138 |
| 2005 | 49.86 | 139 |
| 2004 | 49.851 | 140 |
| 2003 | 49.841 | 140 |
| 2002 | 49.831 | 143 |
| 2001 | 49.819 | 145 |
| 2000 | 49.805 | 144 |
| 1999 | 49.788 | 143 |
| 1998 | 49.768 | 144 |
| 1997 | 49.746 | 144 |
| 1996 | 49.724 | 143 |
| 1995 | 49.701 | 143 |
| 1994 | 49.679 | 146 |
| 1993 | 49.657 | 149 |
| 1992 | 49.636 | 149 |
| 1991 | 49.616 | 150 |
| 1990 | 49.597 | 150 |
| 1989 | 49.581 | 149 |
| 1988 | 49.566 | 149 |
| 1987 | 49.553 | 149 |
| 1986 | 49.539 | 148 |