| 年份 | 赞比亚 |
|---|---|
| 2023 | - |
| 2022 | 3.15455 |
| 2021 | 3.16177 |
| 2020 | 3.16884 |
| 2019 | 3.1598 |
| 2018 | 3.14773 |
| 2017 | 3.14498 |
| 2016 | 3.1518 |
| 2015 | 3.16728 |
| 2014 | 3.19383 |
| 2013 | 3.23606 |
| 2012 | 3.28288 |
| 2011 | 3.32827 |
| 2010 | 3.3831 |
| 2009 | 3.45431 |
| 2008 | 3.54104 |
| 2007 | 3.64033 |
| 2006 | 3.748 |
| 2005 | 3.86284 |
| 2004 | 3.98201 |
| 2003 | 4.10499 |
| 2002 | 4.23299 |
| 2001 | 4.37181 |
| 2000 | 4.5185 |
| 1999 | 4.65402 |
| 1998 | 4.77938 |
| 1997 | 4.90046 |
| 1996 | 5.01594 |
| 1995 | 5.11796 |
| 1994 | 5.2129 |
| 1993 | 5.30309 |
| 1992 | 5.3869 |
| 1991 | 5.46603 |
| 1990 | 5.54088 |
| 1989 | 5.60999 |
| 1988 | 5.67437 |
| 1987 | 5.73745 |
| 1986 | 5.80515 |
| 1985 | 5.87295 |
| 1984 | 5.93147 |
| 1983 | 5.98725 |
| 1982 | 6.04809 |
| 1981 | 6.09934 |
| 1980 | 6.12464 |
| 1979 | 6.12794 |
| 1978 | 6.11506 |
| 1977 | 6.08988 |
| 1976 | 6.0546 |
| 1975 | 6.01115 |
| 1974 | 5.95907 |
| 1973 | 5.89754 |
| 1972 | 5.82809 |
| 1971 | 5.75102 |
| 1970 | 5.66722 |
| 1969 | 5.60133 |
| 1968 | 5.56265 |
| 1967 | 5.52864 |
| 1966 | 5.49146 |
| 1965 | 5.4515 |
| 1964 | 5.41001 |
| 1963 | 5.36192 |
| 1962 | 5.3141 |
| 1961 | 5.28055 |
| 1960 | 5.2633 |