| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -11.71 | 135 |
| 2015 | -4.4 | 143 |
| 2014 | 13.23 | 13 |
| 2013 | -1.91 | 148 |
| 2012 | -8.62 | 161 |
| 2011 | 3.9 | 88 |
| 2010 | -3.36 | 134 |
| 2009 | 6.31 | 37 |
| 2008 | 4.39 | 79 |
| 2007 | -.81 | 128 |
| 2006 | 0.16 | 121 |
| 2005 | -5.85 | 150 |
| 2004 | 21.3 | 6 |
| 2003 | -15.2 | 165 |
| 2002 | 5.65 | 40 |
| 2001 | -2.98 | 135 |
| 2000 | -.93 | 111 |
| 1999 | 5.11 | 57 |
| 1998 | 3.09 | 72 |
| 1997 | -.02 | 107 |
| 1996 | 6.61 | 37 |
| 1995 | 4.21 | 54 |
| 1994 | 0.53 | 80 |
| 1993 | -5.92 | 112 |
| 1992 | 14.63 | 11 |
| 1991 | -9.28 | 114 |
| 1990 | 6.67 | 31 |
| 1989 | 3.79 | 50 |
| 1988 | -1.54 | 89 |
| 1987 | 3.11 | 48 |
| 1986 | 0.13 | 74 |