| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 56.47 | 108 |
| 2015 | 56.3 | 107 |
| 2014 | 56.09 | 107 |
| 2013 | 55.83 | 106 |
| 2012 | 55.54 | 108 |
| 2011 | 55.25 | 110 |
| 2010 | 54.97 | 110 |
| 2009 | 54.68 | 114 |
| 2008 | 54.4 | 118 |
| 2007 | 54.13 | 118 |
| 2006 | 53.88 | 119 |
| 2005 | 53.7 | 118 |
| 2004 | 53.58 | 115 |
| 2003 | 53.5 | 112 |
| 2002 | 53.52 | 113 |
| 2001 | 53.55 | 118 |
| 2000 | 53.55 | 119 |
| 1999 | 53.55 | 116 |
| 1998 | 53.53 | 114 |
| 1997 | 53.49 | 116 |
| 1996 | 53.41 | 116 |
| 1995 | 53.63 | 118 |
| 1994 | 53.73 | 114 |
| 1993 | 53.87 | 115 |
| 1992 | 53.97 | 118 |
| 1991 | 54.07 | 117 |