| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 206.32 | 2 |
| 2015 | 216.74 | 2 |
| 2014 | 251.69 | 2 |
| 2013 | 258.92 | 2 |
| 2012 | 272.55 | 2 |
| 2011 | 281.3 | 3 |
| 2010 | 280.29 | 2 |
| 2009 | 267.98 | 2 |
| 2008 | 342.28 | 3 |
| 2007 | 312.51 | 3 |
| 2006 | 345.42 | 2 |
| 2005 | 337.23 | 2 |
| 2004 | 325.98 | 1 |
| 2003 | 305.27 | 1 |
| 2002 | 262.8 | 1 |
| 2001 | 266.28 | 1 |
| 2000 | 284.19 | 1 |
| 1999 | 261.63 | 1 |
| 1998 | 246.92 | 2 |
| 1997 | 257 | 2 |
| 1996 | 265.91 | 3 |
| 1995 | 276.23 | 2 |
| 1994 | 270.4 | 2 |
| 1993 | 262.59 | 2 |
| 1992 | 260.07 | 2 |
| 1991 | 275.01 | 1 |
| 1990 | 313.96 | 2 |
| 1989 | 310.06 | 1 |
| 1988 | 328.25 | 1 |
| 1987 | 293.08 | 1 |
| 1986 | 258.52 | 1 |