| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.02 | 51 |
| 2015 | 1.92 | 71 |
| 2014 | 2.29 | 57 |
| 2013 | 2.88 | 53 |
| 2012 | 2.96 | 57 |
| 2011 | 3.95 | 46 |
| 2010 | 3.68 | 50 |
| 2009 | 4.27 | 20 |
| 2008 | 5.12 | 46 |
| 2007 | 3.69 | 74 |
| 2006 | 1.71 | 97 |
| 2005 | 3.05 | 82 |
| 2004 | 4.96 | 49 |
| 2003 | 3.13 | 62 |
| 2002 | 2.81 | 58 |
| 2001 | 3.38 | 39 |
| 2000 | 1.03 | 87 |
| 1999 | 1.51 | 74 |
| 1998 | 0.59 | 99 |
| 1997 | -3.71 | 113 |
| 1996 | -4.09 | 117 |
| 1995 | 0.16 | 86 |
| 1994 | -2.58 | 89 |
| 1993 | -4.65 | 93 |
| 1992 | 2.4 | 33 |
| 1991 | -9.61 | 98 |
| 1990 | -5.96 | 78 |
| 1989 | 8.23 | 11 |
| 1988 | -11.27 | 83 |
| 1987 | -8.37 | 81 |
| 1986 | -3.77 | 73 |