| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -1.2 | 154 |
| 2015 | -1.52 | 166 |
| 2014 | -1.54 | 174 |
| 2013 | -2.31 | 176 |
| 2012 | -2.71 | 177 |
| 2011 | -2.73 | 183 |
| 2010 | -2.83 | 183 |
| 2009 | 0.35 | 70 |
| 2008 | 2.33 | 99 |
| 2007 | 3.65 | 109 |
| 2006 | 4.08 | 94 |
| 2005 | 4.77 | 63 |
| 2004 | 5.84 | 52 |
| 2003 | 2.05 | 112 |
| 2002 | 3.9 | 49 |
| 2001 | 3.44 | 50 |
| 2000 | 2.44 | 117 |
| 1999 | 1.62 | 102 |
| 1998 | 0.99 | 124 |
| 1997 | 0.83 | 144 |
| 1996 | -1.02 | 169 |
| 1995 | 2.08 | 100 |
| 1994 | 0.05 | 129 |
| 1993 | -.89 | 114 |
| 1992 | 12.24 | 4 |
| 1991 | -3.41 | 140 |
| 1990 | -3.72 | 139 |
| 1989 | -17.08 | 163 |
| 1988 | -5.62 | 154 |
| 1987 | -.94 | 119 |
| 1986 | 2.92 | 52 |