| 年份 | 坦桑尼亚 |
|---|---|
| 2023 | - |
| 2022 | 5.14818 |
| 2021 | 5.24792 |
| 2020 | 5.33612 |
| 2019 | 5.41323 |
| 2018 | 5.47712 |
| 2017 | 5.52766 |
| 2016 | 5.56441 |
| 2015 | 5.58835 |
| 2014 | 5.59203 |
| 2013 | 5.56805 |
| 2012 | 5.52333 |
| 2011 | 5.46853 |
| 2010 | 5.4051 |
| 2009 | 5.32579 |
| 2008 | 5.23899 |
| 2007 | 5.15271 |
| 2006 | 5.06304 |
| 2005 | 4.96903 |
| 2004 | 4.87239 |
| 2003 | 4.7755 |
| 2002 | 4.68141 |
| 2001 | 4.59324 |
| 2000 | 4.51786 |
| 1999 | 4.46338 |
| 1998 | 4.4332 |
| 1997 | 4.43096 |
| 1996 | 4.44962 |
| 1995 | 4.48646 |
| 1994 | 4.54683 |
| 1993 | 4.62133 |
| 1992 | 4.69335 |
| 1991 | 4.75979 |
| 1990 | 4.82489 |
| 1989 | 4.87798 |
| 1988 | 4.94904 |
| 1987 | 5.02196 |
| 1986 | 5.0767 |
| 1985 | 5.11925 |
| 1984 | 5.16594 |
| 1983 | 5.19314 |
| 1982 | 5.16954 |
| 1981 | 5.13822 |
| 1980 | 5.10384 |
| 1979 | 5.06383 |
| 1978 | 5.0237 |
| 1977 | 4.99619 |
| 1976 | 4.97715 |
| 1975 | 4.96331 |
| 1974 | 4.95451 |
| 1973 | 4.94809 |
| 1972 | 4.94401 |
| 1971 | 4.9459 |
| 1970 | 4.95395 |
| 1969 | 4.96473 |
| 1968 | 4.9747 |
| 1967 | 4.98269 |
| 1966 | 4.98962 |
| 1965 | 4.99761 |
| 1964 | 5.00599 |
| 1963 | 5.01341 |
| 1962 | 5.01955 |
| 1961 | 5.02608 |
| 1960 | 5.03321 |