| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 89.87 | 27 |
| 2015 | 91.41 | 31 |
| 2014 | 95.91 | 36 |
| 2013 | 99.19 | 36 |
| 2012 | 101.24 | 33 |
| 2011 | 105.6 | 31 |
| 2010 | 92.86 | 34 |
| 2009 | 83.86 | 38 |
| 2008 | 107.19 | 32 |
| 2007 | 114.33 | 21 |
| 2006 | 109.87 | 29 |
| 2005 | 113.21 | 20 |
| 2004 | 105.98 | 24 |
| 2003 | 110.48 | 14 |
| 2002 | 101.21 | 19 |
| 2001 | 98.6 | 26 |
| 2000 | 96.94 | 26 |
| 1999 | 89.68 | 28 |
| 1998 | 100.52 | 19 |
| 1997 | 105.95 | 20 |
| 1996 | 110.02 | 17 |
| 1995 | 90.42 | 22 |