| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 158.1 | 6 |
| 2015 | 161.7 | 6 |
| 2014 | 158.54 | 6 |
| 2013 | 146.38 | 8 |
| 2012 | 143.92 | 10 |
| 2011 | 138.22 | 14 |
| 2010 | 125.42 | 12 |
| 2009 | 105.97 | 14 |
| 2008 | 122.8 | 17 |
| 2007 | 127.46 | 12 |
| 2006 | 121.2 | 13 |
| 2005 | 113.7 | 18 |
| 2004 | 116.79 | 15 |
| 2003 | 101.14 | 23 |
| 2002 | 96.88 | 25 |
| 2001 | 103.33 | 22 |
| 2000 | 99.34 | 25 |
| 1999 | 85.01 | 36 |
| 1998 | 81.65 | 42 |
| 1997 | 80.27 | 40 |
| 1996 | 74.83 | 46 |
| 1995 | 77.97 | 38 |
| 1994 | 70.2 | 46 |
| 1993 | 71.89 | 37 |
| 1992 | 72.71 | 42 |