| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 97.05 | 187 |
| 2015 | 97.45 | 187 |
| 2014 | 98.25 | 189 |
| 2013 | 99.2 | 189 |
| 2012 | 100.19 | 189 |
| 2011 | 100.92 | 190 |
| 2010 | 101.19 | 191 |
| 2009 | 101.94 | 191 |
| 2008 | 102.3 | 191 |
| 2007 | 102.32 | 191 |
| 2006 | 102.22 | 190 |
| 2005 | 102.12 | 190 |
| 2004 | 102 | 190 |
| 2003 | 101.82 | 190 |
| 2002 | 101.46 | 188 |
| 2001 | 100.64 | 187 |
| 2000 | 99.17 | 184 |
| 1999 | 98.26 | 180 |
| 1998 | 96.99 | 180 |
| 1997 | 95.54 | 175 |
| 1996 | 94.08 | 167 |
| 1995 | 92.61 | 162 |
| 1994 | 91.74 | 156 |
| 1993 | 91.2 | 149 |
| 1992 | 90.71 | 144 |
| 1991 | 90.02 | 139 |
| 1990 | 89.03 | 134 |
| 1989 | 88.99 | 131 |
| 1988 | 88.74 | 131 |
| 1987 | 88.43 | 132 |
| 1986 | 88.1 | 131 |