| 年份 | 坦桑尼亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 1.45447 | 
| 2021 | 1.46669 | 
| 2020 | 1.48553 | 
| 2019 | 1.50268 | 
| 2018 | 1.51783 | 
| 2017 | 1.54824 | 
| 2016 | 1.59593 | 
| 2015 | 1.65547 | 
| 2014 | 1.70253 | 
| 2013 | 1.73285 | 
| 2012 | 1.76614 | 
| 2011 | 1.79359 | 
| 2010 | 1.81188 | 
| 2009 | 1.8027 | 
| 2008 | 1.77643 | 
| 2007 | 1.75271 | 
| 2006 | 1.72375 | 
| 2005 | 1.69151 | 
| 2004 | 1.65843 | 
| 2003 | 1.62614 | 
| 2002 | 1.59636 | 
| 2001 | 1.5676 | 
| 2000 | 1.55281 | 
| 1999 | 1.55528 | 
| 1998 | 1.54598 | 
| 1997 | 1.53793 | 
| 1996 | 1.47873 | 
| 1995 | 1.4017 | 
| 1994 | 1.44422 | 
| 1993 | 1.55645 | 
| 1992 | 1.60742 | 
| 1991 | 1.59668 | 
| 1990 | 1.58416 | 
| 1989 | 1.57062 | 
| 1988 | 1.55557 | 
| 1987 | 1.56621 | 
| 1986 | 1.59547 | 
| 1985 | 1.62736 | 
| 1984 | 1.653 | 
| 1983 | 1.67676 | 
| 1982 | 1.70325 | 
| 1981 | 1.71271 | 
| 1980 | 1.72266 | 
| 1979 | 1.74409 | 
| 1978 | 1.76781 | 
| 1977 | 1.77189 | 
| 1976 | 1.76161 | 
| 1975 | 1.74679 | 
| 1974 | 1.72998 | 
| 1973 | 1.7107 | 
| 1972 | 1.6817 | 
| 1971 | 1.64971 | 
| 1970 | 1.6226 | 
| 1969 | 1.59288 | 
| 1968 | 1.55989 | 
| 1967 | 1.543 | 
| 1966 | 1.54449 | 
| 1965 | 1.54572 | 
| 1964 | 1.54275 | 
| 1963 | 1.5387 | 
| 1962 | 1.53756 | 
| 1961 | 1.5323 | 
| 1960 | 1.52668 |