| 时间 | 值 | 世界排名 |
|---|---|---|
| 2013 | 0 | 157 |
| 2012 | 0 | 151 |
| 2011 | 0 | 153 |
| 2010 | 0 | 138 |
| 2009 | 61.7 | 61 |
| 2008 | 68 | 60 |
| 2007 | 70.2 | 60 |
| 2006 | 78 | 58 |
| 2005 | 65.5 | 61 |
| 2004 | 61.3 | 66 |
| 2003 | 54.3 | 66 |
| 2002 | 49.3 | 68 |
| 2001 | 48.8 | 71 |
| 2000 | 58.2 | 68 |
| 1999 | 53.5 | 70 |
| 1998 | 34.7 | 76 |
| 1997 | 38.1 | 70 |
| 1996 | 34.6 | 70 |
| 1995 | 32.2 | 73 |
| 1994 | 32.2 | 69 |
| 1993 | 30.6 | 67 |
| 1992 | 28.1 | 71 |
| 1991 | 26.9 | 65 |
| 1990 | 26.1 | 68 |
| 1989 | 29.4 | 65 |
| 1988 | 27.2 | 66 |
| 1987 | 29.1 | 63 |
| 1986 | 37.4 | 53 |