| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.89 | 119 |
| 2015 | 3.77 | 70 |
| 2014 | -3.4 | 191 |
| 2013 | -3.56 | 192 |
| 2012 | 0.56 | 150 |
| 2011 | 2.05 | 138 |
| 2010 | 2.53 | 133 |
| 2009 | 0.96 | 91 |
| 2008 | -2.56 | 191 |
| 2007 | -2.06 | 199 |
| 2006 | -.16 | 190 |
| 2005 | 2.16 | 167 |
| 2004 | -3.23 | 201 |
| 2003 | 1.83 | 152 |
| 2002 | 0.6 | 156 |
| 2001 | 1.75 | 137 |
| 2000 | 4.56 | 87 |
| 1999 | 1.38 | 141 |
| 1998 | 2.96 | 125 |
| 1997 | -6.07 | 190 |
| 1996 | -3.11 | 183 |
| 1995 | 7.08 | 32 |
| 1994 | -.53 | 153 |
| 1993 | 8.14 | 20 |
| 1992 | 4.01 | 64 |
| 1991 | 7.43 | 26 |
| 1990 | 3.74 | 76 |
| 1989 | 3.53 | 93 |
| 1988 | 2.55 | 114 |
| 1987 | 1.2 | 120 |