| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 62.48 | 146 |
| 2015 | 62.71 | 146 |
| 2014 | 63.32 | 146 |
| 2013 | 63.94 | 145 |
| 2012 | 64.63 | 146 |
| 2011 | 65.33 | 145 |
| 2010 | 65.8 | 145 |
| 2009 | 66.42 | 144 |
| 2008 | 67.03 | 145 |
| 2007 | 67.72 | 144 |
| 2006 | 68.53 | 141 |
| 2005 | 69.32 | 140 |
| 2004 | 69.77 | 139 |
| 2003 | 70.36 | 138 |
| 2002 | 71.15 | 135 |
| 2001 | 72.1 | 136 |
| 2000 | 72.99 | 132 |
| 1999 | 74.15 | 132 |
| 1998 | 75.58 | 132 |
| 1997 | 77.22 | 134 |
| 1996 | 78.82 | 139 |
| 1995 | 80.06 | 141 |
| 1994 | 80.91 | 139 |
| 1993 | 81.28 | 137 |
| 1992 | 81.25 | 132 |
| 1991 | 81.13 | 128 |
| 1990 | 81.13 | 128 |
| 1989 | 80.27 | 126 |
| 1988 | 79.32 | 124 |
| 1987 | 78.16 | 123 |
| 1986 | 76.55 | 115 |