| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 136.52 | 17 |
| 2015 | 165.65 | 12 |
| 2014 | 143.24 | 22 |
| 2013 | 142.6 | 22 |
| 2012 | 144.1 | 24 |
| 2011 | 145.12 | 23 |
| 2010 | 139.82 | 20 |
| 2009 | 120.62 | 25 |
| 2008 | 122.15 | 45 |
| 2007 | 132.05 | 31 |
| 2006 | 149.78 | 12 |
| 2005 | 138.66 | 20 |
| 2004 | 131.37 | 25 |
| 2003 | 156.86 | 12 |
| 2002 | 135.46 | 16 |
| 2001 | 130.73 | 23 |
| 2000 | 123.91 | 31 |
| 1999 | 131.39 | 19 |
| 1998 | 148.9 | 13 |
| 1997 | 135.76 | 17 |
| 1996 | 128.41 | 21 |
| 1995 | 128.31 | 19 |
| 1994 | 132.74 | 18 |
| 1993 | 74.18 | 69 |
| 1992 | 57.14 | 95 |
| 1991 | 69.68 | 71 |
| 1990 | 70.82 | 68 |
| 1989 | 83.35 | 49 |
| 1988 | 81.05 | 48 |
| 1987 | 80.36 | 49 |
| 1986 | 93.5 | 40 |