| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 3.43 | 34 |
| 2015 | 4.09 | 28 |
| 2014 | 0.69 | 139 |
| 2013 | -36.83 | 194 |
| 2012 | 3.78 | 47 |
| 2011 | 2.66 | 91 |
| 2010 | 2.02 | 111 |
| 2009 | 0.35 | 71 |
| 2008 | 0.42 | 143 |
| 2007 | 2.8 | 126 |
| 2006 | 2.93 | 124 |
| 2005 | -.87 | 187 |
| 2004 | 4.08 | 86 |
| 2003 | -7.16 | 197 |
| 2002 | 1.62 | 98 |
| 2001 | 2.36 | 78 |
| 2000 | -4.53 | 190 |
| 1999 | 1.37 | 111 |
| 1998 | 2.37 | 100 |
| 1997 | 2.86 | 91 |
| 1996 | -6.32 | 187 |
| 1995 | 4.48 | 45 |
| 1994 | 2.12 | 82 |
| 1993 | -2.36 | 141 |
| 1992 | -8.88 | 158 |
| 1991 | -3.02 | 134 |
| 1990 | -4.38 | 145 |
| 1989 | -.17 | 116 |
| 1988 | -.35 | 124 |
| 1987 | -6.95 | 154 |
| 1986 | 1.17 | 95 |