| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 94.34 | 52 |
| 2015 | 105.65 | 49 |
| 2014 | 114.98 | 41 |
| 2013 | 129.09 | 31 |
| 2012 | 150.37 | 20 |
| 2011 | 156.61 | 18 |
| 2010 | 141.84 | 18 |
| 2009 | 134.1 | 18 |
| 2008 | 157.07 | 15 |
| 2007 | 145.61 | 19 |
| 2006 | 137.9 | 21 |
| 2005 | 135.69 | 26 |
| 2004 | 123.65 | 33 |
| 2003 | 114.69 | 40 |
| 2002 | 121.85 | 32 |
| 2001 | 130.1 | 24 |
| 2000 | 133.99 | 25 |
| 1999 | 126.69 | 23 |
| 1998 | 151.27 | 12 |
| 1997 | 165.34 | 10 |
| 1996 | 156.01 | 11 |
| 1995 | 146.91 | 11 |
| 1994 | 143.61 | 16 |
| 1993 | 139.68 | 13 |
| 1992 | 144.88 | 13 |
| 1991 | 140.25 | 14 |
| 1990 | 121.79 | 23 |
| 1989 | 109.6 | 28 |
| 1988 | 97.67 | 31 |
| 1987 | 98.59 | 30 |
| 1986 | 97.33 | 33 |