| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 50.63 | 97 |
| 2015 | 47.2 | 121 |
| 2014 | 50.42 | 122 |
| 2013 | 46.91 | 138 |
| 2012 | 49.84 | 129 |
| 2011 | 50.91 | 129 |
| 2010 | 52.77 | 117 |
| 2009 | 52.9 | 104 |
| 2008 | 62.64 | 107 |
| 2007 | 55.19 | 123 |
| 2006 | 53.38 | 125 |
| 2005 | 55.92 | 115 |
| 2004 | 49.74 | 122 |
| 2003 | 47.97 | 120 |
| 2002 | 47.08 | 119 |
| 2001 | 51 | 105 |
| 2000 | 59.85 | 83 |
| 1999 | 72.83 | 54 |
| 1998 | 77 | 47 |
| 1997 | 72.02 | 55 |
| 1996 | 76.13 | 44 |
| 1995 | 72.31 | 51 |
| 1994 | 66.37 | 53 |
| 1993 | 70.85 | 43 |
| 1992 | 82.39 | 25 |
| 1991 | 90.89 | 20 |
| 1990 | 104.01 | 15 |
| 1989 | 99.1 | 18 |
| 1988 | 98.77 | 17 |
| 1987 | 90.23 | 18 |
| 1986 | 88.33 | 20 |