| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 208.31 | 2 |
| 2015 | 202.06 | 4 |
| 2014 | 190.75 | 4 |
| 2013 | 185.89 | 4 |
| 2012 | 180.28 | 4 |
| 2011 | 174.04 | 4 |
| 2010 | 175.74 | 5 |
| 2009 | 174.81 | 5 |
| 2008 | 148.71 | 7 |
| 2007 | 149.29 | 5 |
| 2006 | 157.49 | 6 |
| 2005 | 151.09 | 5 |
| 2004 | 149.79 | 5 |
| 2003 | 153.55 | 5 |
| 2002 | 145.39 | 8 |
| 2001 | 141.09 | 7 |
| 2000 | 135.58 | 6 |
| 1999 | 133.65 | 7 |
| 1998 | 123.9 | 7 |
| 1997 | 115.25 | 7 |
| 1996 | 105.96 | 8 |
| 1995 | 99.03 | 9 |
| 1994 | 96.47 | 9 |
| 1993 | 100.02 | 9 |
| 1992 | 89.46 | 11 |
| 1991 | 84.52 | 12 |
| 1990 | 77.79 | 11 |
| 1989 | 66.32 | 24 |
| 1988 | 63.25 | 25 |
| 1987 | 65.36 | 20 |
| 1986 | 61.18 | 23 |