| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.68 | 59 |
| 2015 | 2.26 | 72 |
| 2014 | -.44 | 161 |
| 2013 | -5.73 | 191 |
| 2012 | -4.62 | 189 |
| 2011 | -2.21 | 181 |
| 2010 | -1.3 | 174 |
| 2009 | -4.37 | 144 |
| 2008 | 1.29 | 120 |
| 2007 | 2.61 | 133 |
| 2006 | 2.78 | 128 |
| 2005 | 2.24 | 131 |
| 2004 | 3.18 | 109 |
| 2003 | 1.24 | 136 |
| 2002 | 2.22 | 79 |
| 2001 | 2.49 | 74 |
| 2000 | 4.61 | 51 |
| 1999 | 3.66 | 57 |
| 1998 | 3.95 | 55 |
| 1997 | 1.12 | 133 |
| 1996 | -.27 | 161 |
| 1995 | 6.52 | 26 |
| 1994 | 3.73 | 54 |
| 1993 | -1.7 | 130 |
| 1992 | 6.53 | 22 |
| 1991 | -1.83 | 123 |
| 1990 | 5.14 | 29 |
| 1989 | 6.42 | 21 |
| 1988 | 7.5 | 26 |
| 1987 | 5.91 | 31 |
| 1986 | 2.52 | 61 |