| 年份 | 坦桑尼亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 8.92416 | 
| 2021 | 8.85239 | 
| 2020 | 8.78535 | 
| 2019 | 8.7126 | 
| 2018 | 8.65674 | 
| 2017 | 8.67384 | 
| 2016 | 8.75321 | 
| 2015 | 8.87818 | 
| 2014 | 9.03287 | 
| 2013 | 9.1756 | 
| 2012 | 9.28377 | 
| 2011 | 9.35736 | 
| 2010 | 9.42281 | 
| 2009 | 9.44647 | 
| 2008 | 9.45364 | 
| 2007 | 9.49444 | 
| 2006 | 9.53562 | 
| 2005 | 9.5554 | 
| 2004 | 9.55476 | 
| 2003 | 9.53511 | 
| 2002 | 9.51269 | 
| 2001 | 9.4881 | 
| 2000 | 9.46046 | 
| 1999 | 9.42402 | 
| 1998 | 9.3492 | 
| 1997 | 9.25286 | 
| 1996 | 9.11911 | 
| 1995 | 8.97958 | 
| 1994 | 8.91593 | 
| 1993 | 8.87415 | 
| 1992 | 8.76851 | 
| 1991 | 8.62147 | 
| 1990 | 8.49006 | 
| 1989 | 8.38561 | 
| 1988 | 8.27352 | 
| 1987 | 8.26488 | 
| 1986 | 8.35293 | 
| 1985 | 8.4597 | 
| 1984 | 8.55125 | 
| 1983 | 8.64724 | 
| 1982 | 8.76241 | 
| 1981 | 8.8152 | 
| 1980 | 8.87529 | 
| 1979 | 8.97258 | 
| 1978 | 9.0756 | 
| 1977 | 9.11419 | 
| 1976 | 9.1014 | 
| 1975 | 9.06357 | 
| 1974 | 8.99573 | 
| 1973 | 8.94573 | 
| 1972 | 8.9539 | 
| 1971 | 8.99776 | 
| 1970 | 9.05702 | 
| 1969 | 9.12574 | 
| 1968 | 9.14707 | 
| 1967 | 9.10069 | 
| 1966 | 9.04372 | 
| 1965 | 8.98617 | 
| 1964 | 8.93348 | 
| 1963 | 8.90164 | 
| 1962 | 8.89533 | 
| 1961 | 8.88896 | 
| 1960 | 8.88474 |