| 年份 | 坦桑尼亚 |
|---|---|
| 2023 | - |
| 2022 | 1.81538 |
| 2021 | 1.87856 |
| 2020 | 1.89772 |
| 2019 | 1.92247 |
| 2018 | 2.1034 |
| 2017 | 2.30142 |
| 2016 | 2.42431 |
| 2015 | 2.30732 |
| 2014 | 2.1005 |
| 2013 | 2.02271 |
| 2012 | 1.92818 |
| 2011 | 1.89686 |
| 2010 | 1.65364 |
| 2009 | 1.59446 |
| 2008 | 1.83908 |
| 2007 | 1.9398 |
| 2006 | 1.96067 |
| 2005 | 1.94877 |
| 2004 | 1.9092 |
| 2003 | 1.92158 |
| 2002 | 2.13745 |
| 2001 | 2.25046 |
| 2000 | 2.37194 |
| 1999 | 2.18505 |
| 1998 | 2.16118 |
| 1997 | 1.60832 |
| 1996 | 1.4471 |
| 1995 | 2.77067 |
| 1994 | 3.46995 |
| 1993 | 2.75771 |
| 1992 | 2.12608 |
| 1991 | 2.1797 |
| 1990 | 2.24879 |
| 1989 | 2.27385 |
| 1988 | 2.43878 |
| 1987 | 2.68276 |
| 1986 | 2.71784 |
| 1985 | 2.65404 |
| 1984 | 2.65005 |
| 1983 | 2.69591 |
| 1982 | 2.50516 |
| 1981 | 2.53407 |
| 1980 | 2.66997 |
| 1979 | 2.80458 |
| 1978 | 2.49925 |
| 1977 | 2.63734 |
| 1976 | 2.70378 |
| 1975 | 2.75536 |
| 1974 | 2.78106 |
| 1973 | 2.82845 |
| 1972 | 2.83433 |
| 1971 | 2.79129 |
| 1970 | 2.77797 |
| 1969 | 2.75741 |
| 1968 | 2.67746 |
| 1967 | 2.80987 |
| 1966 | 2.79599 |
| 1965 | 2.80074 |
| 1964 | 2.79023 |
| 1963 | 2.75485 |
| 1962 | 2.76204 |
| 1961 | 2.74308 |
| 1960 | - |