| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 50.005 | 122 |
| 2015 | 50.007 | 122 |
| 2014 | 50.012 | 122 |
| 2013 | 50.02 | 121 |
| 2012 | 50.029 | 124 |
| 2011 | 50.037 | 122 |
| 2010 | 50.042 | 122 |
| 2009 | 50.045 | 124 |
| 2008 | 50.044 | 122 |
| 2007 | 50.039 | 123 |
| 2006 | 50.031 | 125 |
| 2005 | 50.018 | 127 |
| 2004 | 50 | 128 |
| 2003 | 49.978 | 130 |
| 2002 | 49.953 | 132 |
| 2001 | 49.928 | 134 |
| 2000 | 49.905 | 135 |
| 1999 | 49.885 | 135 |
| 1998 | 49.867 | 136 |
| 1997 | 49.85 | 136 |
| 1996 | 49.834 | 136 |
| 1995 | 49.815 | 136 |
| 1994 | 49.796 | 136 |
| 1993 | 49.776 | 139 |
| 1992 | 49.754 | 139 |
| 1991 | 49.729 | 140 |
| 1990 | 49.7 | 142 |
| 1989 | 49.667 | 144 |
| 1988 | 49.63 | 144 |
| 1987 | 49.59 | 146 |
| 1986 | 49.549 | 147 |