| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -6.66 | 203 |
| 2015 | -6.25 | 203 |
| 2014 | -5.66 | 201 |
| 2013 | -5.09 | 201 |
| 2012 | -4.21 | 200 |
| 2011 | -3.17 | 196 |
| 2010 | -1.67 | 186 |
| 2009 | 0.73 | 96 |
| 2008 | 2.69 | 15 |
| 2007 | 3.58 | 7 |
| 2006 | 2.82 | 15 |
| 2005 | 0.43 | 116 |
| 2004 | 1.85 | 46 |
| 2003 | 0.97 | 85 |
| 2002 | -.91 | 175 |
| 2001 | -1.36 | 186 |
| 2000 | -1.5 | 187 |
| 1999 | -2.03 | 193 |
| 1998 | -2.5 | 196 |
| 1997 | -4.42 | 202 |
| 1996 | -5.72 | 204 |
| 1995 | -6.15 | 203 |
| 1994 | -6.26 | 203 |
| 1993 | -6.1 | 202 |
| 1992 | -5.66 | 202 |
| 1991 | -4.97 | 202 |
| 1990 | -4.1 | 198 |
| 1989 | -3.17 | 195 |
| 1988 | -2.17 | 187 |
| 1987 | -1.12 | 175 |
| 1986 | 3.91 | 7 |