| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 4.54 | 199 |
| 2015 | 4.67 | 200 |
| 2014 | 4.8 | 199 |
| 2013 | 4.94 | 199 |
| 2012 | 5.08 | 199 |
| 2011 | 5.24 | 200 |
| 2010 | 5.41 | 200 |
| 2009 | 5.58 | 200 |
| 2008 | 5.76 | 200 |
| 2007 | 5.95 | 200 |
| 2006 | 6.14 | 198 |
| 2005 | 6.34 | 199 |
| 2004 | 6.54 | 198 |
| 2003 | 6.75 | 198 |
| 2002 | 6.96 | 198 |
| 2001 | 7.19 | 198 |
| 2000 | 7.41 | 198 |
| 1999 | 7.77 | 196 |
| 1998 | 8.19 | 196 |
| 1997 | 8.63 | 195 |
| 1996 | 9.08 | 194 |
| 1995 | 9.56 | 193 |
| 1994 | 10.07 | 193 |
| 1993 | 10.59 | 193 |
| 1992 | 11.14 | 193 |
| 1991 | 11.72 | 192 |
| 1990 | 12.32 | 192 |
| 1989 | 12.94 | 190 |
| 1988 | 13.59 | 190 |
| 1987 | 14.27 | 189 |
| 1986 | 14.98 | 188 |