| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 16.45 | 208 |
| 2015 | 16.27 | 208 |
| 2014 | 16.1 | 205 |
| 2013 | 15.94 | 205 |
| 2012 | 15.8 | 205 |
| 2011 | 15.66 | 206 |
| 2010 | 15.54 | 206 |
| 2009 | 15.43 | 206 |
| 2008 | 15.33 | 206 |
| 2007 | 15.24 | 206 |
| 2006 | 15.14 | 206 |
| 2005 | 15.05 | 206 |
| 2004 | 14.96 | 205 |
| 2003 | 14.88 | 205 |
| 2002 | 14.79 | 206 |
| 2001 | 14.7 | 206 |
| 2000 | 14.61 | 206 |
| 1999 | 14.52 | 205 |
| 1998 | 14.38 | 204 |
| 1997 | 14 | 205 |
| 1996 | 13.63 | 206 |
| 1995 | 13.26 | 206 |
| 1994 | 12.91 | 206 |
| 1993 | 12.56 | 206 |
| 1992 | 12.22 | 206 |
| 1991 | 11.89 | 206 |
| 1990 | 11.56 | 206 |
| 1989 | 11.24 | 204 |
| 1988 | 10.93 | 204 |
| 1987 | 10.64 | 204 |
| 1986 | 10.4 | 204 |