| 年份 | 津巴布韦 |
|---|---|
| 2023 | - |
| 2022 | 4.91332 |
| 2021 | 4.73816 |
| 2020 | 4.57629 |
| 2019 | 4.45913 |
| 2018 | 4.35637 |
| 2017 | 4.22057 |
| 2016 | 4.05195 |
| 2015 | 3.86803 |
| 2014 | 3.6885 |
| 2013 | 3.52604 |
| 2012 | 3.38837 |
| 2011 | 3.27632 |
| 2010 | 3.18495 |
| 2009 | 3.10781 |
| 2008 | 3.04032 |
| 2007 | 2.98601 |
| 2006 | 2.95196 |
| 2005 | 2.94773 |
| 2004 | 2.9804 |
| 2003 | 3.04738 |
| 2002 | 3.13207 |
| 2001 | 3.234 |
| 2000 | 3.35088 |
| 1999 | 3.47744 |
| 1998 | 3.61604 |
| 1997 | 3.75417 |
| 1996 | 3.88589 |
| 1995 | 4.00746 |
| 1994 | 4.08982 |
| 1993 | 4.029 |
| 1992 | 3.827 |
| 1991 | 3.62767 |
| 1990 | 3.45168 |
| 1989 | 3.26724 |
| 1988 | 3.14726 |
| 1987 | 3.06096 |
| 1986 | 2.9791 |
| 1985 | 2.92704 |
| 1984 | 2.87573 |
| 1983 | 2.80754 |
| 1982 | 2.77365 |
| 1981 | 2.79818 |
| 1980 | 3.12046 |
| 1979 | 3.50482 |
| 1978 | 3.4665 |
| 1977 | 3.37649 |
| 1976 | 3.37144 |
| 1975 | 3.4041 |
| 1974 | 3.44882 |
| 1973 | 3.50756 |
| 1972 | 3.55901 |
| 1971 | 3.58764 |
| 1970 | 3.58538 |
| 1969 | 3.5854 |
| 1968 | 3.58944 |
| 1967 | 3.58044 |
| 1966 | 3.59281 |
| 1965 | 3.64808 |
| 1964 | 3.74492 |
| 1963 | 3.8889 |
| 1962 | 4.06388 |
| 1961 | 4.21746 |
| 1960 | 4.31301 |