| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 23.16 | 159 |
| 2015 | 22.63 | 161 |
| 2014 | 22.07 | 160 |
| 2013 | 21.49 | 160 |
| 2012 | 20.91 | 159 |
| 2011 | 20.38 | 161 |
| 2010 | 19.91 | 160 |
| 2009 | 19.59 | 159 |
| 2008 | 19.38 | 159 |
| 2007 | 19.27 | 158 |
| 2006 | 19.21 | 158 |
| 2005 | 19.16 | 158 |
| 2004 | 18.99 | 158 |
| 2003 | 18.84 | 159 |
| 2002 | 18.7 | 161 |
| 2001 | 18.58 | 161 |
| 2000 | 18.48 | 161 |
| 1999 | 18.35 | 161 |
| 1998 | 18.24 | 161 |
| 1997 | 18.14 | 160 |
| 1996 | 18.01 | 161 |
| 1995 | 17.84 | 163 |
| 1994 | 17.64 | 163 |
| 1993 | 17.41 | 164 |
| 1992 | 17.14 | 162 |
| 1991 | 16.85 | 165 |
| 1990 | 16.55 | 164 |
| 1989 | 16.32 | 162 |
| 1988 | 16.1 | 163 |
| 1987 | 15.88 | 163 |
| 1986 | 15.67 | 163 |