| 时间 | 值 | 世界排名 |
|---|---|---|
| 2016 | 55.3 | 61 |
| 2015 | 64 | 61 |
| 2014 | 82.1 | 61 |
| 2013 | 112.1 | 55 |
| 2012 | 121.4 | 54 |
| 2011 | 126.4 | 53 |
| 2010 | 129.7 | 53 |
| 2009 | 3.2 | 101 |
| 2008 | 4.7 | 101 |
| 2007 | 5.6 | 98 |
| 2006 | 5.9 | 96 |
| 2005 | 5.4 | 95 |
| 2004 | 5 | 104 |
| 2003 | 4.3 | 109 |
| 2002 | 8 | 102 |
| 2001 | 6.4 | 114 |
| 2000 | 15.5 | 93 |
| 1999 | 33 | 77 |
| 1998 | 82.2 | 62 |
| 1997 | 53.8 | 65 |
| 1996 | 32.9 | 71 |
| 1995 | 32.2 | 72 |
| 1994 | 38 | 66 |
| 1993 | 85.4 | 53 |
| 1992 | 54.1 | 56 |
| 1991 | 68 | 50 |
| 1990 | 63.2 | 52 |
| 1989 | 68.4 | 50 |
| 1988 | 73.6 | 47 |
| 1987 | 70 | 47 |
| 1986 | 58.6 | 47 |