| 年份 | 坦桑尼亚 |
|---|---|
| 2023 | - |
| 2022 | 4.48333 |
| 2021 | 3.16869 |
| 2020 | 6.73882 |
| 2019 | 2.35119 |
| 2018 | - |
| 2017 | - |
| 2016 | 2.74732 |
| 2015 | 2.70402 |
| 2014 | 3.51103 |
| 2013 | 2.4303 |
| 2012 | 2.62964 |
| 2011 | - |
| 2010 | 1.79657 |
| 2009 | - |
| 2008 | - |
| 2007 | 0.89691 |
| 2006 | - |
| 2005 | 0.89133 |
| 2004 | 0.68525 |
| 2003 | 0.53754 |
| 2002 | 0.34234 |
| 2001 | 0.31387 |
| 2000 | 0.29724 |
| 1999 | 0.25284 |
| 1998 | 0.2126 |
| 1997 | 0.24047 |
| 1996 | 0.18543 |
| 1995 | 0.1528 |
| 1994 | 0.13878 |
| 1993 | 0.11484 |
| 1992 | 0.10879 |
| 1991 | 0.10343 |
| 1990 | - |
| 1989 | - |
| 1988 | - |
| 1987 | 0.07716 |
| 1986 | 0.07087 |
| 1985 | 0.07396 |
| 1984 | 0.0784 |
| 1983 | 0.08468 |
| 1982 | 0.08736 |
| 1981 | - |
| 1980 | - |
| 1979 | 0.08214 |
| 1978 | 0.08752 |
| 1977 | 0.03009 |
| 1976 | 0.03101 |
| 1975 | 0.05774 |
| 1974 | 0.07623 |
| 1973 | 0.07366 |
| 1972 | 0.0682 |
| 1971 | 0.06186 |
| 1970 | 0.05445 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |