| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 32.28 | 181 |
| 2015 | 32.38 | 179 |
| 2014 | 32.5 | 174 |
| 2013 | 32.65 | 173 |
| 2012 | 32.83 | 171 |
| 2011 | 33.02 | 169 |
| 2010 | 33.2 | 167 |
| 2009 | 33.38 | 167 |
| 2008 | 33.56 | 166 |
| 2007 | 33.74 | 164 |
| 2006 | 33.93 | 164 |
| 2005 | 34.11 | 163 |
| 2004 | 34.29 | 163 |
| 2003 | 34.48 | 160 |
| 2002 | 34.59 | 157 |
| 2001 | 34.17 | 157 |
| 2000 | 33.76 | 158 |
| 1999 | 33.35 | 158 |
| 1998 | 32.94 | 159 |
| 1997 | 32.53 | 160 |
| 1996 | 32.13 | 160 |
| 1995 | 31.73 | 160 |
| 1994 | 31.34 | 160 |
| 1993 | 30.94 | 160 |
| 1992 | 30.5 | 162 |
| 1991 | 29.74 | 162 |
| 1990 | 28.99 | 164 |
| 1989 | 28.25 | 162 |
| 1988 | 27.52 | 163 |
| 1987 | 26.81 | 165 |
| 1986 | 26.11 | 165 |