| 年份 | 坦桑尼亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 15.2433 |
| 2020 | 15.2433 |
| 2019 | 15.0385 |
| 2018 | 14.8337 |
| 2017 | 14.6289 |
| 2016 | 14.4241 |
| 2015 | 14.2193 |
| 2014 | 14.0146 |
| 2013 | 13.8098 |
| 2012 | 13.605 |
| 2011 | 13.4002 |
| 2010 | 13.1954 |
| 2009 | 12.9906 |
| 2008 | 12.7858 |
| 2007 | 12.1567 |
| 2006 | 11.5278 |
| 2005 | 10.8988 |
| 2004 | 10.2699 |
| 2003 | 9.641 |
| 2002 | 9.70874 |
| 2001 | 9.62971 |
| 2000 | 9.70874 |
| 1999 | 9.82163 |
| 1998 | 9.84985 |
| 1997 | 10.0564 |
| 1996 | 10.1603 |
| 1995 | 10.0474 |
| 1994 | 10.0474 |
| 1993 | 10.0474 |
| 1992 | 9.93452 |
| 1991 | 10.1637 |
| 1990 | 10.1603 |
| 1989 | 10.1603 |
| 1988 | 10.1603 |
| 1987 | 10.1603 |
| 1986 | 10.1603 |
| 1985 | 10.1603 |
| 1984 | 9.03138 |
| 1983 | 9.03138 |
| 1982 | 9.03138 |
| 1981 | 9.03138 |
| 1980 | 9.03138 |
| 1979 | 9.03138 |
| 1978 | 9.03138 |
| 1977 | 7.90246 |
| 1976 | 7.90246 |
| 1975 | 7.90246 |
| 1974 | 7.90246 |
| 1973 | 7.90246 |
| 1972 | 7.90246 |
| 1971 | 7.90246 |
| 1970 | 7.90246 |
| 1969 | 6.77354 |
| 1968 | 6.77354 |
| 1967 | 6.77354 |
| 1966 | 6.77354 |
| 1965 | 6.77354 |
| 1964 | 6.77354 |
| 1963 | 6.88643 |
| 1962 | 5.70106 |
| 1961 | 5.8704 |
| 1960 | - |