| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 3.23 | 76 |
| 2015 | 2.94 | 94 |
| 2014 | 0.91 | 158 |
| 2013 | 2.73 | 110 |
| 2012 | 7.24 | 27 |
| 2011 | 0.84 | 163 |
| 2010 | 7.51 | 40 |
| 2009 | -.69 | 109 |
| 2008 | 1.73 | 144 |
| 2007 | 5.44 | 108 |
| 2006 | 4.97 | 116 |
| 2005 | 4.19 | 115 |
| 2004 | 6.29 | 71 |
| 2003 | 7.19 | 42 |
| 2002 | 6.15 | 32 |
| 2001 | 3.44 | 91 |
| 2000 | 4.46 | 90 |
| 1999 | 4.57 | 60 |
| 1998 | -7.63 | 192 |
| 1997 | -2.75 | 183 |
| 1996 | 5.65 | 64 |
| 1995 | 8.12 | 22 |
| 1994 | 8 | 24 |
| 1993 | 8.25 | 18 |
| 1992 | 8.08 | 24 |
| 1991 | 8.56 | 17 |
| 1990 | 11.17 | 10 |
| 1989 | 12.19 | 7 |
| 1988 | 13.29 | 7 |
| 1987 | 9.52 | 18 |
| 1986 | 5.53 | 45 |