| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 26.89 | 191 |
| 2015 | 26.78 | 190 |
| 2014 | 26.69 | 187 |
| 2013 | 26.62 | 186 |
| 2012 | 26.57 | 185 |
| 2011 | 26.53 | 184 |
| 2010 | 26.52 | 184 |
| 2009 | 26.5 | 185 |
| 2008 | 26.48 | 185 |
| 2007 | 26.47 | 184 |
| 2006 | 26.45 | 184 |
| 2005 | 26.43 | 183 |
| 2004 | 26.42 | 181 |
| 2003 | 26.4 | 180 |
| 2002 | 26.43 | 180 |
| 2001 | 26.46 | 181 |
| 2000 | 26.49 | 179 |
| 1999 | 26.76 | 178 |
| 1998 | 27.28 | 174 |
| 1997 | 27.81 | 174 |
| 1996 | 28.34 | 172 |
| 1995 | 28.88 | 171 |
| 1994 | 29.42 | 167 |
| 1993 | 29.97 | 164 |
| 1992 | 30.53 | 161 |
| 1991 | 31.09 | 155 |
| 1990 | 31.66 | 153 |
| 1989 | 32.23 | 151 |
| 1988 | 32.61 | 151 |
| 1987 | 32.82 | 147 |
| 1986 | 33.03 | 147 |