| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 61.91 | 145 |
| 2015 | 62.23 | 145 |
| 2014 | 62.85 | 145 |
| 2013 | 63.47 | 144 |
| 2012 | 64.15 | 144 |
| 2011 | 65 | 144 |
| 2010 | 66.06 | 147 |
| 2009 | 66.73 | 147 |
| 2008 | 67.55 | 147 |
| 2007 | 68.44 | 147 |
| 2006 | 69.27 | 144 |
| 2005 | 69.98 | 142 |
| 2004 | 70.72 | 141 |
| 2003 | 71.28 | 140 |
| 2002 | 71.66 | 138 |
| 2001 | 71.9 | 134 |
| 2000 | 72.08 | 130 |
| 1999 | 73.29 | 129 |
| 1998 | 74.38 | 129 |
| 1997 | 75.37 | 129 |
| 1996 | 76.27 | 130 |
| 1995 | 77.03 | 130 |
| 1994 | 78.16 | 129 |
| 1993 | 79.31 | 129 |
| 1992 | 80.48 | 129 |
| 1991 | 81.56 | 132 |
| 1990 | 82.51 | 134 |
| 1989 | 84.86 | 141 |
| 1988 | 87.26 | 150 |
| 1987 | 89.75 | 154 |
| 1986 | 92.39 | 169 |