| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 5.95 | 17 |
| 2015 | -4.38 | 142 |
| 2014 | 2.32 | 98 |
| 2013 | 12.96 | 17 |
| 2012 | -4 | 149 |
| 2011 | 19.41 | 3 |
| 2010 | -1.3 | 121 |
| 2009 | -2 | 124 |
| 2008 | 16.6 | 16 |
| 2007 | -5 | 147 |
| 2006 | 2 | 99 |
| 2005 | 0.4 | 111 |
| 2004 | 19.8 | 8 |
| 2003 | -9.9 | 158 |
| 2002 | 2 | 91 |
| 2001 | 10.2 | 25 |
| 2000 | 12.1 | 11 |
| 1999 | -3.95 | 138 |
| 1998 | -11.18 | 155 |
| 1997 | -.95 | 115 |
| 1996 | -9.81 | 151 |
| 1995 | -4.45 | 118 |
| 1994 | -10.1 | 119 |
| 1993 | 5.48 | 31 |
| 1992 | -9.96 | 115 |
| 1991 | -17.38 | 122 |