| 年份 | 乍得 |
|---|---|
| 2023 | - |
| 2022 | 75.937 |
| 2021 | 76.219 |
| 2020 | 76.48 |
| 2019 | 76.721 |
| 2018 | 76.941 |
| 2017 | 77.142 |
| 2016 | 77.323 |
| 2015 | 77.485 |
| 2014 | 77.628 |
| 2013 | 77.752 |
| 2012 | 77.858 |
| 2011 | 77.946 |
| 2010 | 78.015 |
| 2009 | 78.066 |
| 2008 | 78.099 |
| 2007 | 78.132 |
| 2006 | 78.166 |
| 2005 | 78.199 |
| 2004 | 78.232 |
| 2003 | 78.265 |
| 2002 | 78.298 |
| 2001 | 78.33 |
| 2000 | 78.363 |
| 1999 | 78.396 |
| 1998 | 78.429 |
| 1997 | 78.462 |
| 1996 | 78.494 |
| 1995 | 78.527 |
| 1994 | 78.56 |
| 1993 | 78.592 |
| 1992 | 78.765 |
| 1991 | 78.977 |
| 1990 | 79.189 |
| 1989 | 79.398 |
| 1988 | 79.606 |
| 1987 | 79.813 |
| 1986 | 80.017 |
| 1985 | 80.221 |
| 1984 | 80.422 |
| 1983 | 80.623 |
| 1982 | 80.821 |
| 1981 | 81.018 |
| 1980 | 81.213 |
| 1979 | 81.408 |
| 1978 | 81.6 |
| 1977 | 82.587 |
| 1976 | 83.53 |
| 1975 | 84.434 |
| 1974 | 85.296 |
| 1973 | 86.118 |
| 1972 | 86.9 |
| 1971 | 87.687 |
| 1970 | 88.432 |
| 1969 | 89.138 |
| 1968 | 89.804 |
| 1967 | 90.436 |
| 1966 | 91.032 |
| 1965 | 91.594 |
| 1964 | 92.123 |
| 1963 | 92.473 |
| 1962 | 92.761 |
| 1961 | 93.038 |
| 1960 | 93.305 |