| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.19 | 81 |
| 2015 | 1.95 | 89 |
| 2014 | 1.07 | 106 |
| 2013 | 2.53 | 73 |
| 2012 | -1.97 | 138 |
| 2011 | -2.24 | 138 |
| 2010 | 0.39 | 115 |
| 2009 | 3.04 | 93 |
| 2008 | 1.13 | 124 |
| 2007 | 0.39 | 131 |
| 2006 | 0.38 | 122 |
| 2005 | 0.62 | 120 |
| 2004 | -1.54 | 125 |
| 2003 | 5.99 | 35 |
| 2002 | 8.17 | 28 |
| 2001 | 3.35 | 78 |
| 2000 | -.55 | 111 |
| 1999 | 2.99 | 66 |
| 1998 | -2.44 | 115 |
| 1997 | 3.11 | 57 |
| 1996 | 0.1 | 99 |
| 1995 | -.9 | 92 |
| 1994 | 4.02 | 34 |
| 1993 | 3.63 | 47 |
| 1992 | -6.72 | 98 |
| 1991 | -12.29 | 111 |