| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -4.68 | 114 |
| 2015 | -9.92 | 146 |
| 2014 | 0.18 | 113 |
| 2013 | 4.12 | 43 |
| 2012 | 7.18 | 18 |
| 2011 | 6.62 | 28 |
| 2010 | 5.4 | 32 |
| 2009 | -5.16 | 135 |
| 2008 | 10.53 | 13 |
| 2007 | 14.43 | 10 |
| 2006 | 12.41 | 15 |
| 2005 | 12.17 | 12 |
| 2004 | 12.51 | 10 |
| 2003 | 8.03 | 20 |
| 2002 | 8.83 | 18 |
| 2001 | 9.79 | 10 |
| 2000 | 7.61 | 19 |
| 1999 | -2.56 | 109 |
| 1998 | -3.15 | 114 |
| 1997 | 5.03 | 33 |
| 1996 | -4.63 | 118 |
| 1995 | -2.83 | 105 |
| 1994 | 1.33 | 65 |
| 1993 | 1.32 | 53 |
| 1992 | -3.04 | 80 |
| 1991 | -4.81 | 89 |