| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.39 | 54 |
| 2015 | 1.41 | 55 |
| 2014 | 1.44 | 53 |
| 2013 | 1.46 | 53 |
| 2012 | 1.49 | 52 |
| 2011 | 1.51 | 55 |
| 2010 | 1.53 | 57 |
| 2009 | 1.54 | 58 |
| 2008 | 1.55 | 58 |
| 2007 | 1.55 | 59 |
| 2006 | 1.53 | 58 |
| 2005 | 1.52 | 59 |
| 2004 | 1.51 | 57 |
| 2003 | 1.5 | 58 |
| 2002 | 1.48 | 62 |
| 2001 | 1.47 | 59 |
| 2000 | 1.44 | 65 |
| 1999 | 1.43 | 69 |
| 1998 | 1.44 | 69 |
| 1997 | 1.48 | 68 |
| 1996 | 1.54 | 69 |
| 1995 | 1.63 | 63 |
| 1994 | 1.71 | 60 |
| 1993 | 1.79 | 57 |
| 1992 | 1.87 | 56 |
| 1991 | 1.94 | 54 |
| 1990 | 2.02 | 53 |
| 1989 | 2.11 | 48 |
| 1988 | 2.17 | 51 |
| 1987 | 1.81 | 64 |
| 1986 | 1.71 | 70 |