| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.84 | 50 |
| 2015 | 1.79 | 56 |
| 2014 | 1.79 | 61 |
| 2013 | 2.09 | 46 |
| 2012 | 1.91 | 49 |
| 2011 | 2 | 44 |
| 2010 | 1.98 | 49 |
| 2009 | 2.03 | 52 |
| 2008 | 1.84 | 62 |
| 2007 | 1.82 | 62 |
| 2006 | 1.95 | 55 |
| 2005 | 2.05 | 53 |
| 2004 | 1.97 | 61 |
| 2003 | 1.89 | 73 |
| 2002 | 1.94 | 66 |
| 2001 | 1.91 | 64 |
| 2000 | 1.86 | 64 |
| 1999 | 1.89 | 65 |
| 1998 | 1.88 | 64 |
| 1997 | 2.04 | 61 |
| 1996 | 2.12 | 59 |
| 1995 | 2.26 | 60 |
| 1994 | 2.18 | 64 |
| 1993 | 2.31 | 61 |
| 1992 | 2.35 | 62 |
| 1991 | 2.37 | 61 |
| 1990 | 2.38 | 62 |
| 1989 | 2.4 | 61 |
| 1988 | 2.39 | 62 |
| 1987 | 2.35 | 64 |
| 1986 | 2.41 | 59 |