| 年份 | 乍得 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 423.49 |
| 2020 | 408.621 |
| 2019 | 393.335 |
| 2018 | 394.251 |
| 2017 | 399.137 |
| 2016 | 394.835 |
| 2015 | 405.939 |
| 2014 | 406.878 |
| 2013 | 409.912 |
| 2012 | 408.93 |
| 2011 | 414.004 |
| 2010 | 417.437 |
| 2009 | 419.903 |
| 2008 | 420.374 |
| 2007 | 422.428 |
| 2006 | 428.049 |
| 2005 | 416.281 |
| 2004 | 415.437 |
| 2003 | 407.937 |
| 2002 | 411.054 |
| 2001 | 408.133 |
| 2000 | 417.052 |
| 1999 | 410.404 |
| 1998 | 410.791 |
| 1997 | 406.433 |
| 1996 | 408.452 |
| 1995 | 411.438 |
| 1994 | 415.454 |
| 1993 | 416.234 |
| 1992 | 424.283 |
| 1991 | 424.47 |
| 1990 | 499.509 |
| 1989 | 429.171 |
| 1988 | 421.147 |
| 1987 | 569.704 |
| 1986 | 445.404 |
| 1985 | 432.171 |
| 1984 | 455.307 |
| 1983 | 460.885 |
| 1982 | 463.323 |
| 1981 | 469.125 |
| 1980 | 470.141 |
| 1979 | 473.059 |
| 1978 | 477.745 |
| 1977 | 482.267 |
| 1976 | 485.471 |
| 1975 | 470.872 |
| 1974 | 472.116 |
| 1973 | 472.641 |
| 1972 | 496.781 |
| 1971 | 512.193 |
| 1970 | 500.689 |
| 1969 | 501.463 |
| 1968 | 502.886 |
| 1967 | 508.385 |
| 1966 | 510.874 |
| 1965 | 487.703 |
| 1964 | 477.38 |
| 1963 | 478.974 |
| 1962 | 479.175 |
| 1961 | 482.081 |
| 1960 | 485.325 |