| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 17.41 | 167 |
| 2015 | 17.53 | 167 |
| 2014 | 17.64 | 167 |
| 2013 | 17.75 | 167 |
| 2012 | 17.86 | 167 |
| 2011 | 17.96 | 168 |
| 2010 | 18.06 | 168 |
| 2009 | 18.17 | 168 |
| 2008 | 18.27 | 170 |
| 2007 | 18.37 | 170 |
| 2006 | 18.47 | 171 |
| 2005 | 18.66 | 171 |
| 2004 | 19 | 171 |
| 2003 | 19.35 | 172 |
| 2002 | 19.7 | 170 |
| 2001 | 20.06 | 170 |
| 2000 | 20.38 | 171 |
| 1999 | 20.62 | 172 |
| 1998 | 20.86 | 172 |
| 1997 | 21.1 | 172 |
| 1996 | 21.34 | 175 |
| 1995 | 21.76 | 172 |
| 1994 | 22.55 | 171 |
| 1993 | 23.36 | 170 |
| 1992 | 24.18 | 168 |
| 1991 | 25.03 | 166 |
| 1990 | 26.16 | 164 |
| 1989 | 27.85 | 159 |
| 1988 | 29.61 | 154 |
| 1987 | 31.44 | 152 |
| 1986 | 33.32 | 146 |