| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 37.77 | 140 |
| 2015 | 37.71 | 140 |
| 2014 | 37.52 | 141 |
| 2013 | 37.75 | 139 |
| 2012 | 37.9 | 138 |
| 2011 | 37.91 | 140 |
| 2010 | 37.81 | 141 |
| 2009 | 36.74 | 143 |
| 2008 | 34.44 | 150 |
| 2007 | 35.86 | 145 |
| 2006 | 35.06 | 146 |
| 2005 | 34.47 | 143 |
| 2004 | 33.58 | 151 |
| 2003 | 33.03 | 154 |
| 2002 | 31.53 | 156 |
| 2001 | 30.95 | 157 |
| 2000 | 31.8 | 156 |
| 1999 | 29.63 | 159 |
| 1998 | 29.29 | 159 |
| 1997 | 29.96 | 156 |
| 1996 | 29.54 | 154 |
| 1995 | 29.86 | 152 |
| 1994 | 28.31 | 161 |
| 1993 | 25.53 | 162 |
| 1992 | 24.82 | 164 |
| 1991 | 23.62 | 165 |