| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 34.7 | 149 |
| 2015 | 34.93 | 150 |
| 2014 | 34.24 | 151 |
| 2013 | 33.81 | 151 |
| 2012 | 34.12 | 150 |
| 2011 | 33.72 | 151 |
| 2010 | 33.98 | 151 |
| 2009 | 34.69 | 149 |
| 2008 | 36.11 | 146 |
| 2007 | 34.85 | 149 |
| 2006 | 35.24 | 145 |
| 2005 | 33.86 | 152 |
| 2004 | 34.09 | 147 |
| 2003 | 34.01 | 145 |
| 2002 | 34.7 | 143 |
| 2001 | 34.85 | 143 |
| 2000 | 34.76 | 141 |
| 1999 | 34.66 | 139 |
| 1998 | 35.34 | 138 |
| 1997 | 35.39 | 134 |
| 1996 | 35.11 | 133 |
| 1995 | 34.88 | 130 |
| 1994 | 35.53 | 126 |
| 1993 | 35.67 | 127 |
| 1992 | 35.78 | 127 |
| 1991 | 35.81 | 124 |