| 年份 | 乍得 |
|---|---|
| 2023 | - |
| 2022 | 10.7109 |
| 2021 | 10.6308 |
| 2020 | 10.5618 |
| 2019 | 10.5127 |
| 2018 | 10.505 |
| 2017 | 10.5177 |
| 2016 | 10.5254 |
| 2015 | 10.5087 |
| 2014 | 10.4649 |
| 2013 | 10.4413 |
| 2012 | 10.4443 |
| 2011 | 10.403 |
| 2010 | 10.3686 |
| 2009 | 10.3886 |
| 2008 | 10.3534 |
| 2007 | 10.2584 |
| 2006 | 10.1762 |
| 2005 | 10.1002 |
| 2004 | 10.0413 |
| 2003 | 9.99787 |
| 2002 | 9.89721 |
| 2001 | 9.78114 |
| 2000 | 9.7645 |
| 1999 | 9.77093 |
| 1998 | 9.75714 |
| 1997 | 9.87849 |
| 1996 | 10.1366 |
| 1995 | 10.31 |
| 1994 | 10.3873 |
| 1993 | 10.5288 |
| 1992 | 10.6937 |
| 1991 | 10.7547 |
| 1990 | 10.7381 |
| 1989 | 10.7076 |
| 1988 | 10.6282 |
| 1987 | 10.5002 |
| 1986 | 10.3647 |
| 1985 | 10.2629 |
| 1984 | 10.2539 |
| 1983 | 10.3001 |
| 1982 | 10.2183 |
| 1981 | 10.0373 |
| 1980 | 9.97866 |
| 1979 | 9.98456 |
| 1978 | 9.96317 |
| 1977 | 9.9571 |
| 1976 | 9.96271 |
| 1975 | 9.97566 |
| 1974 | 9.99051 |
| 1973 | 10.0064 |
| 1972 | 10.0236 |
| 1971 | 10.0306 |
| 1970 | 10.0273 |
| 1969 | 9.87041 |
| 1968 | 9.60907 |
| 1967 | 9.39904 |
| 1966 | 9.19396 |
| 1965 | 8.99584 |
| 1964 | 8.96821 |
| 1963 | 9.04998 |
| 1962 | 9.06463 |
| 1961 | 9.06899 |
| 1960 | 9.06359 |