| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 32.48 | 190 |
| 2015 | 31.82 | 189 |
| 2014 | 31.03 | 190 |
| 2013 | 30.26 | 190 |
| 2012 | 29.52 | 190 |
| 2011 | 28.82 | 191 |
| 2010 | 28.17 | 191 |
| 2009 | 27.56 | 191 |
| 2008 | 27.03 | 189 |
| 2007 | 26.56 | 189 |
| 2006 | 26.1 | 188 |
| 2005 | 25.63 | 187 |
| 2004 | 25.36 | 187 |
| 2003 | 25.07 | 186 |
| 2002 | 24.76 | 186 |
| 2001 | 24.44 | 186 |
| 2000 | 24.11 | 185 |
| 1999 | 23.73 | 184 |
| 1998 | 23.37 | 185 |
| 1997 | 23.01 | 185 |
| 1996 | 22.68 | 185 |
| 1995 | 22.36 | 184 |
| 1994 | 22.02 | 183 |
| 1993 | 21.7 | 184 |
| 1992 | 21.39 | 183 |
| 1991 | 21.07 | 183 |
| 1990 | 20.75 | 183 |
| 1989 | 20.36 | 181 |
| 1988 | 19.98 | 181 |
| 1987 | 19.61 | 180 |
| 1986 | 19.26 | 180 |