| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 41.55 | 3 |
| 2015 | 39.57 | 2 |
| 2014 | 29.83 | 5 |
| 2013 | 27.08 | 5 |
| 2012 | 34.82 | 6 |
| 2011 | 26.03 | 17 |
| 2010 | 33.11 | 9 |
| 2009 | 17 | 52 |
| 2008 | 8.06 | 122 |
| 2007 | 24.47 | 51 |
| 2006 | 20.26 | 71 |
| 2005 | 21.51 | 48 |
| 2004 | 21.43 | 43 |
| 2003 | 29.63 | 26 |
| 2002 | 19.71 | 47 |
| 2001 | -19.44 | 160 |
| 2000 | 1.53 | 141 |
| 1999 | 4.09 | 138 |
| 1998 | 10.49 | 87 |
| 1997 | 25.53 | 38 |
| 1996 | 18.82 | 61 |
| 1995 | -2.81 | 145 |
| 1994 | 17.64 | 80 |
| 1993 | 46.48 | 22 |
| 1992 | 62.49 | 14 |
| 1991 | 141.34 | 5 |
| 1990 | 1113.27 | 3 |
| 1989 | 2235.18 | 2 |
| 1988 | 442.81 | 4 |
| 1987 | 163.14 | 4 |
| 1986 | 113.02 | 6 |