| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 37.53 | 142 |
| 2015 | 37.48 | 142 |
| 2014 | 37.41 | 142 |
| 2013 | 37.3 | 141 |
| 2012 | 37.15 | 142 |
| 2011 | 36.61 | 146 |
| 2010 | 36.48 | 146 |
| 2009 | 35.65 | 147 |
| 2008 | 34.79 | 149 |
| 2007 | 37.28 | 140 |
| 2006 | 34.27 | 152 |
| 2005 | 34.29 | 148 |
| 2004 | 34.1 | 146 |
| 2003 | 33.66 | 150 |
| 2002 | 32.68 | 152 |
| 2001 | 33.17 | 148 |
| 2000 | 33.24 | 149 |
| 1999 | 30.73 | 155 |
| 1998 | 29.87 | 156 |
| 1997 | 35.11 | 135 |
| 1996 | 34.14 | 137 |
| 1995 | 30.64 | 150 |
| 1994 | 28.67 | 158 |
| 1993 | 33.81 | 134 |
| 1992 | 31.46 | 142 |
| 1991 | 34.32 | 131 |