| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 100.78 | 22 |
| 2015 | 104.45 | 20 |
| 2014 | 111.99 | 19 |
| 2013 | 113.88 | 20 |
| 2012 | 120.29 | 20 |
| 2011 | 121.72 | 19 |
| 2010 | 110.3 | 19 |
| 2009 | 101.57 | 16 |
| 2008 | 122.52 | 18 |
| 2007 | 111.75 | 23 |
| 2006 | 116.57 | 17 |
| 2005 | 121.02 | 11 |
| 2004 | 110.27 | 20 |
| 2003 | 102.54 | 22 |
| 2002 | 98.85 | 23 |
| 2001 | 105.51 | 20 |
| 2000 | 103.63 | 22 |
| 1999 | 85.88 | 34 |
| 1998 | 85.71 | 34 |
| 1997 | 80.06 | 41 |
| 1996 | 69.96 | 57 |
| 1995 | 75.16 | 44 |
| 1994 | 67.98 | 51 |
| 1993 | 64.43 | 56 |
| 1992 | 65.64 | 47 |
| 1991 | 67.18 | 42 |
| 1990 | 65.75 | 46 |
| 1989 | 63.46 | 50 |
| 1988 | 58.76 | 48 |
| 1987 | 48.83 | 72 |
| 1986 | 41.87 | 84 |