| 年份 | 坦桑尼亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | - | 
| 2021 | 2.39316 | 
| 2020 | 2.46381 | 
| 2019 | 2.29071 | 
| 2018 | 2.55994 | 
| 2017 | 3.77302 | 
| 2016 | 4.05656 | 
| 2015 | 4.04224 | 
| 2014 | 3.68075 | 
| 2013 | 3.66923 | 
| 2012 | 4.04719 | 
| 2011 | 3.99734 | 
| 2010 | 3.79695 | 
| 2009 | 4.65621 | 
| 2008 | 4.81555 | 
| 2007 | 5.07309 | 
| 2006 | 4.16915 | 
| 2005 | 4.1647 | 
| 2004 | 4.34297 | 
| 2003 | 5.51088 | 
| 2002 | 3.88212 | 
| 2001 | 3.35696 | 
| 2000 | 3.50656 | 
| 1999 | 3.71775 | 
| 1998 | 5.72013 | 
| 1997 | 8.86198 | 
| 1996 | 11.2672 | 
| 1995 | 14.0226 | 
| 1994 | 11.2995 | 
| 1993 | 10.421 | 
| 1992 | 11.114 | 
| 1991 | 9.69905 | 
| 1990 | 11.4135 | 
| 1989 | 8.86579 | 
| 1988 | 7.40748 | 
| 1987 | - | 
| 1986 | - | 
| 1985 | - | 
| 1984 | - | 
| 1983 | - | 
| 1982 | - | 
| 1981 | - | 
| 1980 | - | 
| 1979 | - | 
| 1978 | - | 
| 1977 | - | 
| 1976 | - | 
| 1975 | - | 
| 1974 | - | 
| 1973 | - | 
| 1972 | - | 
| 1971 | - | 
| 1970 | - | 
| 1969 | - | 
| 1968 | - | 
| 1967 | - | 
| 1966 | - | 
| 1965 | - | 
| 1964 | - | 
| 1963 | - | 
| 1962 | - | 
| 1961 | - | 
| 1960 | - |