| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 147.03 | 6 |
| 2015 | 143.68 | 7 |
| 2014 | 139.78 | 7 |
| 2013 | 134.37 | 10 |
| 2012 | 133.26 | 10 |
| 2011 | 131.42 | 10 |
| 2010 | 131.24 | 10 |
| 2009 | 136.05 | 11 |
| 2008 | 129.1 | 10 |
| 2007 | 122.08 | 13 |
| 2006 | 118.96 | 13 |
| 2005 | 111.05 | 14 |
| 2004 | 108.98 | 14 |
| 2003 | 110.75 | 14 |
| 2002 | 114.45 | 12 |
| 2001 | 111.16 | 13 |
| 2000 | 65.03 | 32 |
| 1999 | 57.09 | 41 |
| 1998 | 49.29 | 53 |
| 1997 | 38.38 | 66 |
| 1996 | 37.06 | 67 |
| 1995 | 35.89 | 73 |
| 1994 | 36.38 | 69 |
| 1993 | 36.19 | 71 |
| 1992 | 35.23 | 68 |
| 1991 | 35.06 | 67 |
| 1990 | 34.75 | 62 |
| 1989 | 35.86 | 59 |
| 1988 | 33.97 | 61 |
| 1987 | 33.51 | 59 |
| 1986 | 33.22 | 60 |