| 年份 | 坦桑尼亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 4.61916 | 
| 2021 | 4.63538 | 
| 2020 | 4.63579 | 
| 2019 | 4.61769 | 
| 2018 | 4.57851 | 
| 2017 | 4.53162 | 
| 2016 | 4.48776 | 
| 2015 | 4.44422 | 
| 2014 | 4.38852 | 
| 2013 | 4.32001 | 
| 2012 | 4.247 | 
| 2011 | 4.16842 | 
| 2010 | 4.08744 | 
| 2009 | 3.9963 | 
| 2008 | 3.9042 | 
| 2007 | 3.82443 | 
| 2006 | 3.75169 | 
| 2005 | 3.68767 | 
| 2004 | 3.63868 | 
| 2003 | 3.60842 | 
| 2002 | 3.60381 | 
| 2001 | 3.62331 | 
| 2000 | 3.66039 | 
| 1999 | 3.71214 | 
| 1998 | 3.77084 | 
| 1997 | 3.83386 | 
| 1996 | 3.88609 | 
| 1995 | 3.92715 | 
| 1994 | 3.97584 | 
| 1993 | 4.0387 | 
| 1992 | 4.10902 | 
| 1991 | 4.1717 | 
| 1990 | 4.22125 | 
| 1989 | 4.26065 | 
| 1988 | 4.29086 | 
| 1987 | 4.26193 | 
| 1986 | 4.18674 | 
| 1985 | 4.10859 | 
| 1984 | 4.04661 | 
| 1983 | 4.00199 | 
| 1982 | 3.97089 | 
| 1981 | 3.97021 | 
| 1980 | 3.97698 | 
| 1979 | 3.9817 | 
| 1978 | 3.98002 | 
| 1977 | 3.97822 | 
| 1976 | 3.9799 | 
| 1975 | 3.98769 | 
| 1974 | 3.99903 | 
| 1973 | 4.00979 | 
| 1972 | 4.01796 | 
| 1971 | 4.02561 | 
| 1970 | 4.03404 | 
| 1969 | 4.04015 | 
| 1968 | 4.04237 | 
| 1967 | 4.04561 | 
| 1966 | 4.05259 | 
| 1965 | 4.06076 | 
| 1964 | 4.06904 | 
| 1963 | 4.0781 | 
| 1962 | 4.08859 | 
| 1961 | 4.09813 | 
| 1960 | 4.10665 |