| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 331.58 | 1 |
| 2015 | 345.77 | 1 |
| 2014 | 385.88 | 1 |
| 2013 | 419.52 | 1 |
| 2012 | 398.43 | 1 |
| 2011 | 388.88 | 2 |
| 2010 | 368.3 | 1 |
| 2009 | 318.46 | 1 |
| 2008 | 348.05 | 2 |
| 2007 | 340.04 | 2 |
| 2006 | 340.21 | 3 |
| 2005 | 326.2 | 3 |
| 2004 | 318.41 | 2 |
| 2003 | 286.25 | 2 |
| 2002 | 246.41 | 2 |
| 2001 | 232.03 | 3 |
| 2000 | 242.75 | 3 |
| 1999 | 214.22 | 3 |
| 1998 | 214.12 | 3 |
| 1997 | 226.38 | 4 |
| 1996 | 239.3 | 4 |
| 1995 | 255.75 | 3 |
| 1994 | 233.66 | 3 |
| 1993 | 229.9 | 3 |
| 1992 | 236.81 | 3 |
| 1991 | 227.68 | 2 |
| 1990 | 217.23 | 4 |
| 1989 | 219.5 | 2 |
| 1988 | 224.12 | 2 |
| 1987 | 196.36 | 2 |
| 1986 | 175.34 | 2 |