| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 59.21 | 139 |
| 2015 | 59.84 | 140 |
| 2014 | 60.64 | 141 |
| 2013 | 61.24 | 140 |
| 2012 | 61.71 | 139 |
| 2011 | 62.09 | 140 |
| 2010 | 62.37 | 139 |
| 2009 | 62.63 | 137 |
| 2008 | 62.89 | 135 |
| 2007 | 63.2 | 132 |
| 2006 | 63.62 | 131 |
| 2005 | 64.18 | 129 |
| 2004 | 64.84 | 129 |
| 2003 | 65.78 | 128 |
| 2002 | 66.82 | 126 |
| 2001 | 67.81 | 126 |
| 2000 | 68.65 | 124 |
| 1999 | 69.48 | 125 |
| 1998 | 70.31 | 125 |
| 1997 | 71.09 | 125 |
| 1996 | 71.71 | 123 |
| 1995 | 72.09 | 119 |
| 1994 | 75.31 | 125 |
| 1993 | 78.49 | 128 |
| 1992 | 81.72 | 137 |
| 1991 | 85.33 | 147 |
| 1990 | 89.67 | 162 |
| 1989 | 90.66 | 162 |
| 1988 | 91.89 | 168 |
| 1987 | 93.35 | 175 |
| 1986 | 94.68 | 179 |