| 年份 | 乍得 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | - |
| 2016 | 16.5339 |
| 2015 | 22.3314 |
| 2014 | - |
| 2013 | 23.8675 |
| 2012 | 22.5141 |
| 2011 | 21.2372 |
| 2010 | 21.9664 |
| 2009 | 22.2924 |
| 2008 | 22.2945 |
| 2007 | 21.1472 |
| 2006 | 21.1646 |
| 2005 | 21.7533 |
| 2004 | 19.6206 |
| 2003 | 23.4355 |
| 2002 | 24.8408 |
| 2001 | 25.2545 |
| 2000 | 24.3266 |
| 1999 | 25.7117 |
| 1998 | 30.7279 |
| 1997 | 31.9533 |
| 1996 | 32.9602 |
| 1995 | 34.466 |
| 1994 | 28.6853 |
| 1993 | - |
| 1992 | - |
| 1991 | 31.6857 |
| 1990 | 32.7769 |
| 1989 | 32.5323 |
| 1988 | 31.4162 |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | 36.5179 |
| 1976 | 35.3554 |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |