| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 60.63 | 144 |
| 2015 | 61.63 | 144 |
| 2014 | 62.21 | 142 |
| 2013 | 63.24 | 143 |
| 2012 | 64.56 | 145 |
| 2011 | 65.67 | 147 |
| 2010 | 66.03 | 146 |
| 2009 | 66.5 | 146 |
| 2008 | 66.69 | 143 |
| 2007 | 66.98 | 139 |
| 2006 | 67.86 | 139 |
| 2005 | 69.54 | 141 |
| 2004 | 70.43 | 140 |
| 2003 | 71.51 | 141 |
| 2002 | 72.75 | 141 |
| 2001 | 74.02 | 142 |
| 2000 | 75.17 | 142 |
| 1999 | 75.96 | 138 |
| 1998 | 76.84 | 138 |
| 1997 | 77.79 | 138 |
| 1996 | 78.68 | 136 |
| 1995 | 79.43 | 136 |
| 1994 | 80.27 | 134 |
| 1993 | 80.98 | 133 |
| 1992 | 81.67 | 136 |
| 1991 | 82.45 | 137 |
| 1990 | 83.38 | 138 |
| 1989 | 83.28 | 135 |
| 1988 | 83.27 | 134 |
| 1987 | 83.48 | 135 |
| 1986 | 83.92 | 136 |