| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 110.39 | 32 |
| 2015 | 116.21 | 32 |
| 2014 | 116.56 | 39 |
| 2013 | 121.04 | 45 |
| 2012 | 124.17 | 41 |
| 2011 | 123.34 | 38 |
| 2010 | 120.44 | 36 |
| 2009 | 114.15 | 34 |
| 2008 | 127.27 | 40 |
| 2007 | 131.38 | 33 |
| 2006 | 129.52 | 28 |
| 2005 | 137.14 | 22 |
| 2004 | 149.71 | 12 |
| 2003 | 151.74 | 14 |
| 2002 | 153.4 | 14 |
| 2001 | 151.1 | 13 |
| 2000 | 148.94 | 15 |
| 1999 | 133.4 | 17 |
| 1998 | 125.88 | 20 |
| 1997 | 124.23 | 24 |
| 1996 | 123.28 | 23 |
| 1995 | 126.26 | 20 |
| 1994 | 131.36 | 19 |
| 1993 | 135.53 | 14 |
| 1992 | 148.19 | 12 |
| 1991 | 169.88 | 7 |
| 1990 | 177.06 | 6 |
| 1989 | 192.58 | 4 |
| 1988 | 197.42 | 4 |
| 1987 | 203.79 | 4 |
| 1986 | 207.03 | 2 |