| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 113.11 | 15 |
| 2015 | 117.22 | 16 |
| 2014 | 111.56 | 20 |
| 2013 | 112.35 | 21 |
| 2012 | 136.68 | 15 |
| 2011 | 124.74 | 18 |
| 2010 | 106.15 | 20 |
| 2009 | 96.39 | 20 |
| 2008 | 108.35 | 31 |
| 2007 | 110.28 | 24 |
| 2006 | 116.34 | 18 |
| 2005 | 111.53 | 23 |
| 2004 | 112.24 | 17 |
| 2003 | 100.42 | 26 |
| 2002 | 99 | 22 |
| 2001 | 90.2 | 32 |
| 2000 | 91.08 | 36 |
| 1999 | 77.33 | 48 |
| 1998 | 63 | 70 |
| 1997 | 52.27 | 95 |
| 1996 | 48.93 | 102 |
| 1995 | 59.34 | 77 |
| 1994 | 44.21 | 103 |
| 1993 | 29.8 | 132 |