| 年份 | 乍得 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 17.9471 |
| 2020 | - |
| 2019 | 14.7343 |
| 2018 | 14.42 |
| 2017 | 14.5188 |
| 2016 | 14.7841 |
| 2015 | 14.356 |
| 2014 | 14.7669 |
| 2013 | 16.059 |
| 2012 | 14.4041 |
| 2011 | 14.4155 |
| 2010 | 13.7934 |
| 2009 | 13.7896 |
| 2008 | 12.5763 |
| 2007 | 11.7285 |
| 2006 | 8.6566 |
| 2005 | 8.24152 |
| 2004 | 7.82169 |
| 2003 | 7.46472 |
| 2002 | 6.92935 |
| 2001 | 6.11274 |
| 2000 | 5.02616 |
| 1999 | 4.38298 |
| 1998 | 4.10292 |
| 1997 | 3.68216 |
| 1996 | 3.44283 |
| 1995 | 3.20601 |
| 1994 | 2.65208 |
| 1993 | - |
| 1992 | - |
| 1991 | - |
| 1990 | 2.26393 |
| 1989 | 1.77917 |
| 1988 | - |
| 1987 | 1.65212 |
| 1986 | - |
| 1985 | 1.78075 |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | 0.46204 |
| 1973 | - |
| 1972 | 0.33973 |
| 1971 | 0.28712 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |