| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 20.38 | 145 |
| 2015 | 20.1 | 147 |
| 2014 | 20.12 | 151 |
| 2013 | 20.16 | 153 |
| 2012 | 20.23 | 154 |
| 2011 | 20.33 | 160 |
| 2010 | 20.47 | 162 |
| 2009 | 20.61 | 163 |
| 2008 | 20.81 | 164 |
| 2007 | 21.06 | 165 |
| 2006 | 21.31 | 166 |
| 2005 | 21.54 | 166 |
| 2004 | 21.51 | 168 |
| 2003 | 21.45 | 169 |
| 2002 | 21.34 | 171 |
| 2001 | 21.19 | 172 |
| 2000 | 21.01 | 173 |
| 1999 | 21 | 174 |
| 1998 | 20.97 | 173 |
| 1997 | 20.9 | 173 |
| 1996 | 20.77 | 173 |
| 1995 | 20.56 | 174 |
| 1994 | 20.38 | 175 |
| 1993 | 20.15 | 176 |
| 1992 | 19.87 | 176 |
| 1991 | 19.59 | 177 |
| 1990 | 19.35 | 177 |
| 1989 | 19.2 | 176 |
| 1988 | 19.1 | 176 |
| 1987 | 19.05 | 179 |
| 1986 | 19.05 | 179 |