| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 104.92 | 19 |
| 2015 | 103.66 | 22 |
| 2014 | 104.31 | 23 |
| 2013 | 111 | 22 |
| 2012 | 133.36 | 18 |
| 2011 | 104.3 | 33 |
| 2010 | 110.65 | 18 |
| 2009 | 82.42 | 41 |
| 2008 | 78.61 | 69 |
| 2007 | 78.42 | 60 |
| 2006 | 75.81 | 70 |
| 2005 | 86.65 | 45 |
| 2004 | 79.03 | 52 |
| 2003 | 71.28 | 58 |
| 2002 | 65.56 | 72 |
| 2001 | 59.72 | 76 |
| 2000 | 57.55 | 89 |
| 1999 | 70.94 | 58 |
| 1998 | 67.25 | 61 |
| 1997 | 72.23 | 54 |
| 1996 | 82.52 | 36 |
| 1995 | 81.3 | 33 |
| 1994 | 85.4 | 24 |