| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 33.01 | 186 |
| 2015 | 32.38 | 186 |
| 2014 | 31.73 | 186 |
| 2013 | 33.07 | 186 |
| 2012 | 33.16 | 186 |
| 2011 | 33.58 | 186 |
| 2010 | 31.06 | 186 |
| 2009 | 31.15 | 186 |
| 2008 | 31.56 | 186 |
| 2007 | 32.89 | 185 |
| 2006 | 31.33 | 185 |
| 2005 | 31.1 | 186 |
| 2004 | 29.49 | 186 |
| 2003 | 29.61 | 185 |
| 2002 | 26.45 | 186 |
| 2001 | 29.22 | 186 |
| 2000 | 33.16 | 185 |
| 1999 | 33.83 | 185 |
| 1998 | 33.05 | 185 |
| 1997 | 31.33 | 186 |
| 1996 | 30.35 | 186 |
| 1995 | 31.28 | 186 |
| 1994 | 29.71 | 186 |
| 1993 | 29.98 | 186 |
| 1992 | 28.65 | 186 |
| 1991 | 29.59 | 186 |