| 年份 | 坦桑尼亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 2.05416 | 
| 2021 | 2.06526 | 
| 2020 | 2.08164 | 
| 2019 | 2.10184 | 
| 2018 | 2.12534 | 
| 2017 | 2.15423 | 
| 2016 | 2.18674 | 
| 2015 | 2.22041 | 
| 2014 | 2.25069 | 
| 2013 | 2.27392 | 
| 2012 | 2.28951 | 
| 2011 | 2.29645 | 
| 2010 | 2.2956 | 
| 2009 | 2.28054 | 
| 2008 | 2.26336 | 
| 2007 | 2.26024 | 
| 2006 | 2.26143 | 
| 2005 | 2.25875 | 
| 2004 | 2.25532 | 
| 2003 | 2.23718 | 
| 2002 | 2.18471 | 
| 2001 | 2.11425 | 
| 2000 | 2.05672 | 
| 1999 | 2.01763 | 
| 1998 | 1.98261 | 
| 1997 | 1.95985 | 
| 1996 | 1.91382 | 
| 1995 | 1.86162 | 
| 1994 | 1.88745 | 
| 1993 | 1.96216 | 
| 1992 | 2.00545 | 
| 1991 | 2.01571 | 
| 1990 | 2.02789 | 
| 1989 | 2.03981 | 
| 1988 | 2.05652 | 
| 1987 | 2.07843 | 
| 1986 | 2.10004 | 
| 1985 | 2.12259 | 
| 1984 | 2.14496 | 
| 1983 | 2.16621 | 
| 1982 | 2.1864 | 
| 1981 | 2.20423 | 
| 1980 | 2.2199 | 
| 1979 | 2.23528 | 
| 1978 | 2.24832 | 
| 1977 | 2.25537 | 
| 1976 | 2.25782 | 
| 1975 | 2.25837 | 
| 1974 | 2.25768 | 
| 1973 | 2.25528 | 
| 1972 | 2.24955 | 
| 1971 | 2.24279 | 
| 1970 | 2.23694 | 
| 1969 | 2.22993 | 
| 1968 | 2.22183 | 
| 1967 | 2.21888 | 
| 1966 | 2.22184 | 
| 1965 | 2.22487 | 
| 1964 | 2.22683 | 
| 1963 | 2.22827 | 
| 1962 | 2.23007 | 
| 1961 | 2.23025 | 
| 1960 | 2.22989 |