| 年份 | 乍得 |
|---|---|
| 2023 | - |
| 2022 | 98.0885 |
| 2021 | 98.7271 |
| 2020 | 99.3993 |
| 2019 | 99.9047 |
| 2018 | 100.435 |
| 2017 | 101.017 |
| 2016 | 101.488 |
| 2015 | 101.552 |
| 2014 | 101.574 |
| 2013 | 102.195 |
| 2012 | 102.726 |
| 2011 | 103.129 |
| 2010 | 103.395 |
| 2009 | 103.336 |
| 2008 | 103.636 |
| 2007 | 103.932 |
| 2006 | 103.89 |
| 2005 | 103.948 |
| 2004 | 104.798 |
| 2003 | 106.529 |
| 2002 | 107.503 |
| 2001 | 107.246 |
| 2000 | 106.532 |
| 1999 | 106.114 |
| 1998 | 105.865 |
| 1997 | 104.994 |
| 1996 | 103.621 |
| 1995 | 104.289 |
| 1994 | 105.594 |
| 1993 | 103.187 |
| 1992 | 100.748 |
| 1991 | 101.731 |
| 1990 | 102.129 |
| 1989 | 101.162 |
| 1988 | 101.416 |
| 1987 | 102.012 |
| 1986 | 103.101 |
| 1985 | 103.527 |
| 1984 | 100.467 |
| 1983 | 97.6439 |
| 1982 | 100.957 |
| 1981 | 104.96 |
| 1980 | 101.263 |
| 1979 | 97.4167 |
| 1978 | 96.4039 |
| 1977 | 94.9062 |
| 1976 | 93.3947 |
| 1975 | 92.0163 |
| 1974 | 90.8323 |
| 1973 | 89.7797 |
| 1972 | 88.7372 |
| 1971 | 87.8335 |
| 1970 | 87.1377 |
| 1969 | 86.5154 |
| 1968 | 85.9753 |
| 1967 | 85.4989 |
| 1966 | 85.0736 |
| 1965 | 84.7418 |
| 1964 | 83.9327 |
| 1963 | 82.8185 |
| 1962 | 81.9544 |
| 1961 | 81.1458 |
| 1960 | 80.4167 |