| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 33.14 | 178 |
| 2015 | 32.75 | 178 |
| 2014 | 32.37 | 175 |
| 2013 | 31.99 | 175 |
| 2012 | 31.63 | 177 |
| 2011 | 31.28 | 175 |
| 2010 | 30.93 | 177 |
| 2009 | 30.59 | 177 |
| 2008 | 30.25 | 177 |
| 2007 | 29.91 | 175 |
| 2006 | 29.57 | 173 |
| 2005 | 29.24 | 173 |
| 2004 | 28.9 | 174 |
| 2003 | 28.57 | 174 |
| 2002 | 28.24 | 174 |
| 2001 | 27.92 | 175 |
| 2000 | 27.67 | 176 |
| 1999 | 27.45 | 175 |
| 1998 | 27.24 | 175 |
| 1997 | 27.03 | 175 |
| 1996 | 26.82 | 175 |
| 1995 | 26.61 | 175 |
| 1994 | 26.4 | 175 |
| 1993 | 26.19 | 175 |
| 1992 | 25.98 | 174 |
| 1991 | 25.78 | 174 |
| 1990 | 25.55 | 176 |
| 1989 | 25.31 | 173 |
| 1988 | 25.06 | 172 |
| 1987 | 24.82 | 171 |
| 1986 | 24.59 | 169 |