| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 37.22 | 144 |
| 2015 | 37.56 | 141 |
| 2014 | 37.78 | 139 |
| 2013 | 38.21 | 138 |
| 2012 | 38.71 | 136 |
| 2011 | 39.09 | 135 |
| 2010 | 39.69 | 136 |
| 2009 | 38.57 | 135 |
| 2008 | 37.53 | 144 |
| 2007 | 36.51 | 144 |
| 2006 | 35.53 | 143 |
| 2005 | 34.53 | 142 |
| 2004 | 34.08 | 148 |
| 2003 | 33.95 | 146 |
| 2002 | 33.9 | 146 |
| 2001 | 33.91 | 144 |
| 2000 | 33.31 | 147 |
| 1999 | 32.47 | 151 |
| 1998 | 31.72 | 151 |
| 1997 | 31.08 | 152 |
| 1996 | 30.64 | 152 |
| 1995 | 30.14 | 151 |
| 1994 | 29.42 | 155 |
| 1993 | 28.7 | 155 |
| 1992 | 28.04 | 157 |
| 1991 | 27.48 | 157 |