| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 81.51 | 67 |
| 2015 | 83.77 | 81 |
| 2014 | 88.07 | 86 |
| 2013 | 94.39 | 81 |
| 2012 | 98.63 | 80 |
| 2011 | 102.82 | 70 |
| 2010 | 106.58 | 55 |
| 2009 | 96.3 | 60 |
| 2008 | 103.55 | 67 |
| 2007 | 103.52 | 59 |
| 2006 | 107.77 | 54 |
| 2005 | 104.2 | 54 |
| 2004 | 95.59 | 65 |
| 2003 | 94.86 | 61 |
| 2002 | 90.14 | 68 |
| 2001 | 80.74 | 85 |
| 2000 | 85.09 | 75 |
| 1999 | 82.1 | 74 |
| 1998 | 104.69 | 37 |
| 1997 | 95.93 | 50 |
| 1996 | 103.04 | 38 |
| 1995 | 118.06 | 26 |
| 1994 | 123.08 | 22 |
| 1993 | 113.6 | 26 |
| 1992 | 89.5 | 50 |
| 1991 | 89.14 | 42 |