| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 80.04 | 41 |
| 2015 | 86.07 | 35 |
| 2014 | 98.73 | 32 |
| 2013 | 118.68 | 16 |
| 2012 | 85.81 | 54 |
| 2011 | 96.15 | 39 |
| 2010 | 78.8 | 60 |
| 2009 | 83.87 | 37 |
| 2008 | 101.33 | 35 |
| 2007 | 97.31 | 38 |
| 2006 | 112.36 | 22 |
| 2005 | 97.83 | 35 |
| 2004 | 85.65 | 44 |
| 2003 | 80.22 | 46 |
| 2002 | 83.51 | 42 |
| 2001 | 88.94 | 35 |
| 2000 | 92.98 | 31 |
| 1999 | 81.44 | 42 |
| 1998 | 86.98 | 30 |
| 1997 | 96.41 | 24 |
| 1996 | 80.63 | 40 |
| 1995 | 78.23 | 37 |
| 1994 | 60.66 | 63 |
| 1993 | 66.92 | 49 |
| 1992 | 51.38 | 70 |
| 1991 | 68.8 | 39 |
| 1990 | 60.56 | 54 |
| 1989 | 64.77 | 47 |
| 1988 | 56.46 | 58 |
| 1987 | 55.88 | 54 |
| 1986 | 57.07 | 52 |