| 时间 | 值 | 世界排名 |
|---|---|---|
| 2016 | 87 | 59 |
| 2015 | 83.7 | 59 |
| 2014 | 78.5 | 62 |
| 2013 | 69.3 | 64 |
| 2012 | 90.9 | 59 |
| 2011 | 84.6 | 58 |
| 2010 | 77.1 | 59 |
| 2009 | 65.6 | 57 |
| 2008 | 96.1 | 54 |
| 2007 | 101.5 | 53 |
| 2006 | 95.8 | 54 |
| 2005 | 92.1 | 55 |
| 2004 | 74.8 | 63 |
| 2003 | 68 | 62 |
| 2002 | 67.2 | 63 |
| 2001 | 84.5 | 61 |
| 2000 | 90.8 | 57 |
| 1999 | 83.6 | 60 |
| 1998 | 17.5 | 88 |
| 1997 | 17.5 | 90 |
| 1996 | 75.4 | 58 |
| 1995 | 82.6 | 57 |
| 1994 | 55.9 | 58 |
| 1993 | 37.7 | 63 |
| 1992 | 33.8 | 64 |
| 1991 | 23.3 | 70 |
| 1990 | 5.1 | 107 |
| 1989 | 20.4 | 73 |
| 1988 | 15 | 87 |
| 1987 | 10.3 | 97 |
| 1986 | 6 | 105 |