| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 43.77 | 111 |
| 2015 | 44.89 | 114 |
| 2014 | 46.06 | 117 |
| 2013 | 47.21 | 118 |
| 2012 | 48.36 | 117 |
| 2011 | 49.55 | 117 |
| 2010 | 50.82 | 118 |
| 2009 | 51.9 | 119 |
| 2008 | 52.99 | 119 |
| 2007 | 54.09 | 119 |
| 2006 | 55.16 | 119 |
| 2005 | 56.18 | 118 |
| 2004 | 57.51 | 118 |
| 2003 | 58.83 | 118 |
| 2002 | 60.15 | 117 |
| 2001 | 61.44 | 116 |
| 2000 | 62.7 | 116 |
| 1999 | 64.27 | 116 |
| 1998 | 65.84 | 116 |
| 1997 | 67.38 | 115 |
| 1996 | 68.91 | 116 |
| 1995 | 70.41 | 115 |
| 1994 | 72.02 | 113 |
| 1993 | 73.61 | 117 |
| 1992 | 75.13 | 122 |
| 1991 | 76.48 | 123 |
| 1990 | 77.61 | 124 |
| 1989 | 78.95 | 124 |
| 1988 | 80.02 | 125 |
| 1987 | 80.87 | 128 |
| 1986 | 81.64 | 131 |