| 年份 | 乍得 |
|---|---|
| 2023 | - |
| 2022 | 2.53867 |
| 2021 | 2.88813 |
| 2020 | 2.7396 |
| 2019 | 2.37246 |
| 2018 | 2.25947 |
| 2017 | 2.45482 |
| 2016 | 2.38848 |
| 2015 | 2.34283 |
| 2014 | 2.32031 |
| 2013 | 2.85071 |
| 2012 | 2.20615 |
| 2011 | 2.2579 |
| 2010 | 1.98194 |
| 2009 | 2.31174 |
| 2008 | - |
| 2007 | - |
| 2006 | - |
| 2005 | 1.69477 |
| 2004 | 1.59295 |
| 2003 | - |
| 2002 | - |
| 2001 | 2.42614 |
| 2000 | 2.64671 |
| 1999 | 3.22786 |
| 1998 | 1.64903 |
| 1997 | 2.27335 |
| 1996 | - |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | - |
| 1991 | - |
| 1990 | - |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |