| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 0.01 | 158 |
| 2015 | -.22 | 171 |
| 2014 | 0.35 | 172 |
| 2013 | -3.24 | 191 |
| 2012 | -7.3 | 194 |
| 2011 | -9.13 | 196 |
| 2010 | -5.48 | 195 |
| 2009 | -4.3 | 158 |
| 2008 | -.34 | 176 |
| 2007 | 3.27 | 151 |
| 2006 | 5.65 | 92 |
| 2005 | 0.6 | 191 |
| 2004 | 5.06 | 99 |
| 2003 | 5.79 | 64 |
| 2002 | 3.92 | 79 |
| 2001 | 4.13 | 70 |
| 2000 | 3.92 | 108 |
| 1999 | 3.07 | 107 |
| 1998 | 3.89 | 96 |
| 1997 | 4.48 | 94 |
| 1996 | 2.86 | 126 |
| 1995 | 2.1 | 139 |
| 1994 | 2 | 128 |
| 1993 | -1.6 | 152 |
| 1992 | 0.7 | 115 |
| 1991 | 3.1 | 74 |
| 1990 | 0 | 123 |
| 1989 | 3.8 | 85 |
| 1988 | 4.29 | 88 |
| 1987 | -2.26 | 148 |
| 1986 | 0.52 | 125 |