| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 58.34 | 94 |
| 2015 | 58.51 | 93 |
| 2014 | 58.32 | 94 |
| 2013 | 58.2 | 91 |
| 2012 | 57.67 | 96 |
| 2011 | 57.28 | 97 |
| 2010 | 55.52 | 104 |
| 2009 | 52.21 | 127 |
| 2008 | 53.37 | 125 |
| 2007 | 52.5 | 128 |
| 2006 | 51.64 | 130 |
| 2005 | 50.85 | 130 |
| 2004 | 49.89 | 134 |
| 2003 | 49.43 | 137 |
| 2002 | 48.72 | 143 |
| 2001 | 48.95 | 138 |
| 2000 | 49.55 | 139 |
| 1999 | 49.69 | 141 |
| 1998 | 51.65 | 129 |
| 1997 | 51.59 | 126 |
| 1996 | 51.17 | 130 |
| 1995 | 52.54 | 122 |
| 1994 | 52.84 | 123 |
| 1993 | 53.69 | 116 |
| 1992 | 52.54 | 125 |
| 1991 | 50.93 | 134 |