| 年份 | 乍得  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 2.23598 | 
| 2021 | -1.19999 | 
| 2020 | -1.60001 | 
| 2019 | 3.24718 | 
| 2018 | 2.37404 | 
| 2017 | -2.9887 | 
| 2016 | -6.25553 | 
| 2015 | 2.76768 | 
| 2014 | 6.89998 | 
| 2013 | 5.7 | 
| 2012 | 8.88258 | 
| 2011 | 0.0828698 | 
| 2010 | 13.5501 | 
| 2009 | 4.2177 | 
| 2008 | 3.05269 | 
| 2007 | 3.2715 | 
| 2006 | 0.648262 | 
| 2005 | 17.3325 | 
| 2004 | 33.6294 | 
| 2003 | 14.7217 | 
| 2002 | 8.49121 | 
| 2001 | 11.6581 | 
| 2000 | -0.879681 | 
| 1999 | -0.68285 | 
| 1998 | 6.95158 | 
| 1997 | 5.65339 | 
| 1996 | 2.21447 | 
| 1995 | 1.23655 | 
| 1994 | 10.1369 | 
| 1993 | -15.7098 | 
| 1992 | 8.00144 | 
| 1991 | 8.53514 | 
| 1990 | -4.17847 | 
| 1989 | 4.88474 | 
| 1988 | 15.4824 | 
| 1987 | -2.38881 | 
| 1986 | -4.08167 | 
| 1985 | 21.7928 | 
| 1984 | 2.0489 | 
| 1983 | 15.6787 | 
| 1982 | 5.34661 | 
| 1981 | 1.04292 | 
| 1980 | -6.04767 | 
| 1979 | -21.4411 | 
| 1978 | -0.469634 | 
| 1977 | 2.23462 | 
| 1976 | 2.98077 | 
| 1975 | 9.01027 | 
| 1974 | 4.96185 | 
| 1973 | -8.38088 | 
| 1972 | 1.14962 | 
| 1971 | -2.24763 | 
| 1970 | 1.85966 | 
| 1969 | 6.88131 | 
| 1968 | -0.457219 | 
| 1967 | 0.767201 | 
| 1966 | -1.80709 | 
| 1965 | 0.606228 | 
| 1964 | -2.51094 | 
| 1963 | -1.59945 | 
| 1962 | 5.36012 | 
| 1961 | 1.39774 | 
| 1960 | - |