| 年份 | 坦桑尼亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | - | 
| 2021 | 4.0278 | 
| 2020 | 1.23607 | 
| 2019 | 1.02228 | 
| 2018 | 0.811401 | 
| 2017 | 1.22914 | 
| 2016 | 1.46298 | 
| 2015 | 1.15205 | 
| 2014 | 1.24477 | 
| 2013 | 1.95047 | 
| 2012 | 2.62052 | 
| 2011 | 3.17394 | 
| 2010 | 1.59355 | 
| 2009 | 0.73809 | 
| 2008 | 0.109133 | 
| 2007 | 0.984155 | 
| 2006 | 1.18424 | 
| 2005 | 0.778021 | 
| 2004 | 0.969331 | 
| 2003 | 1.34747 | 
| 2002 | 0.969402 | 
| 2001 | 0.677818 | 
| 2000 | 0.243283 | 
| 1999 | 0.0466806 | 
| 1998 | 0.00606052 | 
| 1997 | 0.00659739 | 
| 1996 | 0.0175782 | 
| 1995 | 0.00851606 | 
| 1994 | 0.300353 | 
| 1993 | 0.292547 | 
| 1992 | 0.29502 | 
| 1991 | 0.315657 | 
| 1990 | 0.0842264 | 
| 1989 | 0.00658697 | 
| 1988 | 0.00432217 | 
| 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 | - |