| 年份 | 坦桑尼亚 |
|---|---|
| 2023 | - |
| 2022 | 0.60944 |
| 2021 | 0.591654 |
| 2020 | 0.573312 |
| 2019 | 0.554184 |
| 2018 | 0.537435 |
| 2017 | 0.525847 |
| 2016 | 0.517751 |
| 2015 | 0.512005 |
| 2014 | 0.508128 |
| 2013 | 0.506025 |
| 2012 | 0.505258 |
| 2011 | 0.506024 |
| 2010 | 0.506661 |
| 2009 | 0.504008 |
| 2008 | 0.501465 |
| 2007 | 0.503653 |
| 2006 | 0.508232 |
| 2005 | 0.516189 |
| 2004 | 0.528701 |
| 2003 | 0.537984 |
| 2002 | 0.539627 |
| 2001 | 0.538175 |
| 2000 | 0.538622 |
| 1999 | 0.541388 |
| 1998 | 0.545343 |
| 1997 | 0.550947 |
| 1996 | 0.554182 |
| 1995 | 0.555411 |
| 1994 | 0.561189 |
| 1993 | 0.569457 |
| 1992 | 0.57388 |
| 1991 | 0.573678 |
| 1990 | 0.571819 |
| 1989 | 0.567804 |
| 1988 | 0.561217 |
| 1987 | 0.552508 |
| 1986 | 0.541968 |
| 1985 | 0.530184 |
| 1984 | 0.517539 |
| 1983 | 0.50425 |
| 1982 | 0.490457 |
| 1981 | 0.476861 |
| 1980 | 0.465165 |
| 1979 | 0.455583 |
| 1978 | 0.448414 |
| 1977 | 0.444072 |
| 1976 | 0.441445 |
| 1975 | 0.438997 |
| 1974 | 0.436289 |
| 1973 | 0.433392 |
| 1972 | 0.431021 |
| 1971 | 0.428898 |
| 1970 | 0.426718 |
| 1969 | 0.424833 |
| 1968 | 0.422998 |
| 1967 | 0.420887 |
| 1966 | 0.418487 |
| 1965 | 0.416089 |
| 1964 | 0.413663 |
| 1963 | 0.411116 |
| 1962 | 0.408381 |
| 1961 | 0.405621 |
| 1960 | 0.402786 |