| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 48.07 | 111 |
| 2015 | 51.44 | 110 |
| 2014 | 56.61 | 106 |
| 2013 | 55.91 | 110 |
| 2012 | 59.1 | 102 |
| 2011 | 61.9 | 102 |
| 2010 | 59.63 | 96 |
| 2009 | 57 | 92 |
| 2008 | 70.86 | 82 |
| 2007 | 66.32 | 85 |
| 2006 | 62.72 | 101 |
| 2005 | 60.18 | 98 |
| 2004 | 57.77 | 105 |
| 2003 | 54.18 | 99 |
| 2002 | 50.58 | 108 |
| 2001 | 50.3 | 110 |
| 2000 | 48.44 | 117 |
| 1999 | 44.1 | 120 |
| 1998 | 44.38 | 119 |
| 1997 | 45.58 | 118 |
| 1996 | 45.91 | 116 |
| 1995 | 43.47 | 121 |
| 1994 | 41.09 | 114 |
| 1993 | 41.24 | 103 |
| 1992 | 43.93 | 95 |
| 1991 | 45.32 | 84 |
| 1990 | 48.66 | 80 |
| 1989 | 50.94 | 71 |
| 1988 | 47.4 | 77 |
| 1987 | 43.23 | 86 |
| 1986 | 40.37 | 88 |