| 年份 | 坦桑尼亚 |
|---|---|
| 2023 | - |
| 2022 | 3.75488 |
| 2021 | 3.70232 |
| 2020 | 3.64225 |
| 2019 | 3.57034 |
| 2018 | 3.49205 |
| 2017 | 3.42442 |
| 2016 | 3.3706 |
| 2015 | 3.32766 |
| 2014 | 3.28009 |
| 2013 | 3.22334 |
| 2012 | 3.16867 |
| 2011 | 3.11348 |
| 2010 | 3.0635 |
| 2009 | 3.00876 |
| 2008 | 2.96501 |
| 2007 | 2.95512 |
| 2006 | 2.96612 |
| 2005 | 2.98942 |
| 2004 | 3.02108 |
| 2003 | 3.0573 |
| 2002 | 3.10058 |
| 2001 | 3.14799 |
| 2000 | 3.19877 |
| 1999 | 3.24742 |
| 1998 | 3.28684 |
| 1997 | 3.33664 |
| 1996 | 3.35835 |
| 1995 | 3.35531 |
| 1994 | 3.40634 |
| 1993 | 3.47785 |
| 1992 | 3.48192 |
| 1991 | 3.42927 |
| 1990 | 3.36865 |
| 1989 | 3.30798 |
| 1988 | 3.26571 |
| 1987 | 3.23029 |
| 1986 | 3.19413 |
| 1985 | 3.16691 |
| 1984 | 3.15409 |
| 1983 | 3.15238 |
| 1982 | 3.15882 |
| 1981 | 3.18353 |
| 1980 | 3.21668 |
| 1979 | 3.25133 |
| 1978 | 3.27804 |
| 1977 | 3.2938 |
| 1976 | 3.30241 |
| 1975 | 3.30905 |
| 1974 | 3.31386 |
| 1973 | 3.31476 |
| 1972 | 3.30798 |
| 1971 | 3.29854 |
| 1970 | 3.29133 |
| 1969 | 3.28244 |
| 1968 | 3.27228 |
| 1967 | 3.27183 |
| 1966 | 3.28173 |
| 1965 | 3.29134 |
| 1964 | 3.29872 |
| 1963 | 3.30591 |
| 1962 | 3.3147 |
| 1961 | 3.32114 |
| 1960 | 3.32717 |