| 年份 | 乍得 |
|---|---|
| 2023 | - |
| 2022 | 50.4825 |
| 2021 | 50.3203 |
| 2020 | 50.1506 |
| 2019 | 50.0238 |
| 2018 | 49.8915 |
| 2017 | 49.7469 |
| 2016 | 49.6308 |
| 2015 | 49.6149 |
| 2014 | 49.6096 |
| 2013 | 49.4572 |
| 2012 | 49.3277 |
| 2011 | 49.2297 |
| 2010 | 49.1653 |
| 2009 | 49.1797 |
| 2008 | 49.1072 |
| 2007 | 49.0359 |
| 2006 | 49.046 |
| 2005 | 49.0321 |
| 2004 | 48.8287 |
| 2003 | 48.4194 |
| 2002 | 48.1921 |
| 2001 | 48.2518 |
| 2000 | 48.4186 |
| 1999 | 48.5169 |
| 1998 | 48.5756 |
| 1997 | 48.7819 |
| 1996 | 49.1107 |
| 1995 | 48.9502 |
| 1994 | 48.6396 |
| 1993 | 49.2158 |
| 1992 | 49.8137 |
| 1991 | 49.5709 |
| 1990 | 49.4734 |
| 1989 | 49.7113 |
| 1988 | 49.6486 |
| 1987 | 49.5019 |
| 1986 | 49.2365 |
| 1985 | 49.1335 |
| 1984 | 49.8836 |
| 1983 | 50.5961 |
| 1982 | 49.762 |
| 1981 | 48.79 |
| 1980 | 49.6861 |
| 1979 | 50.6543 |
| 1978 | 50.9155 |
| 1977 | 51.3067 |
| 1976 | 51.7077 |
| 1975 | 52.0789 |
| 1974 | 52.402 |
| 1973 | 52.6927 |
| 1972 | 52.9837 |
| 1971 | 53.2386 |
| 1970 | 53.4366 |
| 1969 | 53.6149 |
| 1968 | 53.7706 |
| 1967 | 53.9087 |
| 1966 | 54.0326 |
| 1965 | 54.1296 |
| 1964 | 54.3677 |
| 1963 | 54.6991 |
| 1962 | 54.9588 |
| 1961 | 55.2042 |
| 1960 | 55.4272 |