| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 148.65 | 5 |
| 2015 | 130.38 | 11 |
| 2014 | 110.27 | 15 |
| 2013 | 107.17 | 16 |
| 2012 | 109.05 | 15 |
| 2011 | 101.23 | 17 |
| 2010 | 108 | 18 |
| 2009 | 123.78 | 13 |
| 2008 | 113.13 | 16 |
| 2007 | 125.89 | 11 |
| 2006 | 142.74 | 7 |
| 2005 | 140.04 | 7 |
| 2004 | 142.42 | 7 |
| 2003 | 169 | 4 |
| 2002 | 168.22 | 4 |
| 2001 | 167.31 | 4 |
| 2000 | 157.44 | 4 |
| 1999 | 165.98 | 4 |
| 1998 | 149.88 | 4 |
| 1997 | 135.94 | 4 |
| 1996 | 131 | 4 |
| 1995 | 124.58 | 3 |
| 1994 | 122.73 | 3 |
| 1993 | 121.18 | 3 |
| 1992 | 130.61 | 3 |
| 1991 | 140.32 | 4 |
| 1990 | 118.62 | 5 |
| 1989 | 112.5 | 7 |
| 1988 | 109.62 | 8 |
| 1987 | 91.83 | 8 |
| 1986 | 91.07 | 10 |