| 年份 | 坦桑尼亚 |
|---|---|
| 2023 | - |
| 2022 | 86.7794 |
| 2021 | 87.7054 |
| 2020 | 88.6972 |
| 2019 | 89.6335 |
| 2018 | 90.4586 |
| 2017 | 91.1354 |
| 2016 | 91.6587 |
| 2015 | 91.9978 |
| 2014 | 92.1826 |
| 2013 | 92.3072 |
| 2012 | 92.367 |
| 2011 | 92.3443 |
| 2010 | 92.1236 |
| 2009 | 91.7085 |
| 2008 | 91.2586 |
| 2007 | 90.8738 |
| 2006 | 90.535 |
| 2005 | 90.2044 |
| 2004 | 89.9646 |
| 2003 | 89.8781 |
| 2002 | 89.9103 |
| 2001 | 90.053 |
| 2000 | 90.2914 |
| 1999 | 90.6141 |
| 1998 | 91.0709 |
| 1997 | 91.6068 |
| 1996 | 92.403 |
| 1995 | 93.4022 |
| 1994 | 94.1907 |
| 1993 | 94.8068 |
| 1992 | 95.5393 |
| 1991 | 96.3853 |
| 1990 | 97.2322 |
| 1989 | 98.0823 |
| 1988 | 98.7487 |
| 1987 | 99.4243 |
| 1986 | 100.142 |
| 1985 | 100.68 |
| 1984 | 100.907 |
| 1983 | 100.836 |
| 1982 | 100.525 |
| 1981 | 99.8886 |
| 1980 | 99.0771 |
| 1979 | 98.1497 |
| 1978 | 97.2991 |
| 1977 | 96.6638 |
| 1976 | 96.1917 |
| 1975 | 95.7539 |
| 1974 | 95.3335 |
| 1973 | 94.986 |
| 1972 | 94.8126 |
| 1971 | 94.7 |
| 1970 | 94.5407 |
| 1969 | 94.436 |
| 1968 | 94.3861 |
| 1967 | 94.127 |
| 1966 | 93.5959 |
| 1965 | 93.0192 |
| 1964 | 92.3923 |
| 1963 | 91.8908 |
| 1962 | 91.7285 |
| 1961 | 91.8019 |
| 1960 | 91.8715 |