| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 98.82 | 48 |
| 2015 | 98.17 | 62 |
| 2014 | 108.32 | 50 |
| 2013 | 127.87 | 36 |
| 2012 | 105.62 | 66 |
| 2011 | 105.93 | 62 |
| 2010 | 85.76 | 90 |
| 2009 | 90.48 | 67 |
| 2008 | 101.11 | 72 |
| 2007 | 102.87 | 61 |
| 2006 | 118.67 | 44 |
| 2005 | 104.84 | 51 |
| 2004 | 93.84 | 68 |
| 2003 | 89.48 | 69 |
| 2002 | 95.01 | 59 |
| 2001 | 99.91 | 51 |
| 2000 | 104.56 | 49 |
| 1999 | 94.68 | 53 |
| 1998 | 102.33 | 41 |
| 1997 | 108.5 | 36 |
| 1996 | 86.9 | 64 |
| 1995 | 92.12 | 52 |
| 1994 | 72.35 | 76 |
| 1993 | 70.1 | 73 |
| 1992 | 68.05 | 74 |
| 1991 | 73.94 | 62 |
| 1990 | 73.32 | 62 |
| 1989 | 76.72 | 55 |
| 1988 | 72.47 | 56 |
| 1987 | 66.18 | 56 |
| 1986 | 72.44 | 53 |