| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 37.05 | 147 |
| 2015 | 37.02 | 147 |
| 2014 | 36.98 | 147 |
| 2013 | 36.76 | 147 |
| 2012 | 36.61 | 146 |
| 2011 | 35.86 | 149 |
| 2010 | 35.88 | 148 |
| 2009 | 35.55 | 148 |
| 2008 | 35.57 | 149 |
| 2007 | 35.22 | 150 |
| 2006 | 34.79 | 151 |
| 2005 | 34.41 | 151 |
| 2004 | 34.07 | 150 |
| 2003 | 32.95 | 152 |
| 2002 | 33.07 | 151 |
| 2001 | 32.54 | 156 |
| 2000 | 32.81 | 153 |
| 1999 | 32.46 | 152 |
| 1998 | 32.78 | 150 |
| 1997 | 32.93 | 147 |
| 1996 | 31.97 | 150 |
| 1995 | 32.07 | 148 |
| 1994 | 31.06 | 149 |
| 1993 | 30.45 | 150 |
| 1992 | 29.98 | 153 |
| 1991 | 29.52 | 155 |
| 1990 | 29.82 | 154 |