| 年份 | 坦桑尼亚 |
|---|---|
| 2023 | - |
| 2022 | 5.87763 |
| 2021 | 5.85691 |
| 2020 | 5.80853 |
| 2019 | 5.74256 |
| 2018 | 5.66096 |
| 2017 | 5.54798 |
| 2016 | 5.40725 |
| 2015 | 5.25633 |
| 2014 | 5.12443 |
| 2013 | 5.01415 |
| 2012 | 4.90903 |
| 2011 | 4.82617 |
| 2010 | 4.76208 |
| 2009 | 4.73313 |
| 2008 | 4.71786 |
| 2007 | 4.68369 |
| 2006 | 4.65279 |
| 2005 | 4.63541 |
| 2004 | 4.63162 |
| 2003 | 4.64148 |
| 2002 | 4.66311 |
| 2001 | 4.69915 |
| 2000 | 4.73864 |
| 1999 | 4.78316 |
| 1998 | 4.86799 |
| 1997 | 4.97148 |
| 1996 | 5.14112 |
| 1995 | 5.3188 |
| 1994 | 5.33883 |
| 1993 | 5.27282 |
| 1992 | 5.27097 |
| 1991 | 5.31686 |
| 1990 | 5.33319 |
| 1989 | 5.31017 |
| 1988 | 5.2987 |
| 1987 | 5.24984 |
| 1986 | 5.15477 |
| 1985 | 5.05533 |
| 1984 | 4.9886 |
| 1983 | 4.91244 |
| 1982 | 4.78514 |
| 1981 | 4.69718 |
| 1980 | 4.62572 |
| 1979 | 4.55252 |
| 1978 | 4.49372 |
| 1977 | 4.48729 |
| 1976 | 4.51662 |
| 1975 | 4.56278 |
| 1974 | 4.61916 |
| 1973 | 4.68014 |
| 1972 | 4.7499 |
| 1971 | 4.82142 |
| 1970 | 4.88531 |
| 1969 | 4.94621 |
| 1968 | 5.00088 |
| 1967 | 5.02968 |
| 1966 | 5.03647 |
| 1965 | 5.0457 |
| 1964 | 5.06037 |
| 1963 | 5.07541 |
| 1962 | 5.08653 |
| 1961 | 5.10238 |
| 1960 | 5.11799 |