| 年份 | 津巴布韦 |
|---|---|
| 2023 | - |
| 2022 | 1.88804 |
| 2021 | 1.95565 |
| 2020 | 1.98389 |
| 2019 | 1.98778 |
| 2018 | 2.06184 |
| 2017 | 2.13073 |
| 2016 | 2.21335 |
| 2015 | 2.31245 |
| 2014 | 2.41387 |
| 2013 | 2.43091 |
| 2012 | 2.09215 |
| 2011 | 1.70891 |
| 2010 | 1.52647 |
| 2009 | 1.29982 |
| 2008 | 1.07403 |
| 2007 | 1.2457 |
| 2006 | 1.14008 |
| 2005 | 0.803504 |
| 2004 | 0.983807 |
| 2003 | 0.919867 |
| 2002 | -0.0158411 |
| 2001 | 0.0187621 |
| 2000 | 0.385433 |
| 1999 | 0.834784 |
| 1998 | 1.02129 |
| 1997 | 1.0406 |
| 1996 | 1.07329 |
| 1995 | 0.659804 |
| 1994 | 0.0145396 |
| 1993 | 0.794837 |
| 1992 | 1.42013 |
| 1991 | 1.51425 |
| 1990 | 1.64707 |
| 1989 | 1.85314 |
| 1988 | 2.10936 |
| 1987 | 2.26793 |
| 1986 | 2.37988 |
| 1985 | 2.51221 |
| 1984 | 2.65895 |
| 1983 | 2.96372 |
| 1982 | 3.18954 |
| 1981 | 5.59827 |
| 1980 | 5.08729 |
| 1979 | 0.964855 |
| 1978 | 0.848958 |
| 1977 | 1.96759 |
| 1976 | 2.48479 |
| 1975 | 2.63743 |
| 1974 | 2.63517 |
| 1973 | 2.56765 |
| 1972 | 2.49325 |
| 1971 | 2.43993 |
| 1970 | 2.51721 |
| 1969 | 2.49048 |
| 1968 | 2.46335 |
| 1967 | 2.47109 |
| 1966 | 2.48926 |
| 1965 | 2.50833 |
| 1964 | 2.52333 |
| 1963 | 2.54314 |
| 1962 | 2.80548 |
| 1961 | 2.85086 |
| 1960 | - |