| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 70.2 | 1 |
| 2015 | -6.5 | 145 |
| 2014 | 16.65 | 5 |
| 2013 | -11.81 | 157 |
| 2012 | 50.01 | 1 |
| 2011 | 2.78 | 67 |
| 2010 | 6.74 | 33 |
| 2009 | -16.3 | 156 |
| 2008 | -12.35 | 151 |
| 2007 | 18.19 | 14 |
| 2006 | 28.96 | 6 |
| 2005 | 10.73 | 20 |
| 2004 | 0.56 | 115 |
| 2003 | -10.24 | 136 |
| 2002 | 165.17 | 1 |
| 2001 | 3.15 | 82 |
| 2000 | 16.06 | 7 |
| 1999 | -59.29 | 134 |
| 1998 | 67.01 | 4 |
| 1997 | 398.85 | 1 |
| 1996 | -71.46 | 132 |
| 1995 | -30.68 | 123 |
| 1994 | -25.21 | 116 |
| 1993 | -.66 | 87 |
| 1992 | -7.56 | 99 |
| 1991 | 38.02 | 3 |
| 1990 | 6 | 20 |
| 1989 | 4.63 | 37 |
| 1988 | -3.3 | 83 |
| 1987 | -13.72 | 91 |
| 1986 | -2.09 | 84 |