| 年份 | 赞比亚 |
|---|---|
| 2023 | - |
| 2022 | 1.41952 |
| 2021 | 1.39012 |
| 2020 | 1.35935 |
| 2019 | 1.32602 |
| 2018 | 1.29337 |
| 2017 | 1.26361 |
| 2016 | 1.23702 |
| 2015 | 1.21421 |
| 2014 | 1.19443 |
| 2013 | 1.17361 |
| 2012 | 1.15581 |
| 2011 | 1.14602 |
| 2010 | 1.14049 |
| 2009 | 1.1397 |
| 2008 | 1.14954 |
| 2007 | 1.16346 |
| 2006 | 1.17387 |
| 2005 | 1.18538 |
| 2004 | 1.20017 |
| 2003 | 1.21905 |
| 2002 | 1.24193 |
| 2001 | 1.26818 |
| 2000 | 1.29668 |
| 1999 | 1.32704 |
| 1998 | 1.35839 |
| 1997 | 1.38944 |
| 1996 | 1.41971 |
| 1995 | 1.44873 |
| 1994 | 1.4761 |
| 1993 | 1.50026 |
| 1992 | 1.52167 |
| 1991 | 1.5431 |
| 1990 | 1.5658 |
| 1989 | 1.58927 |
| 1988 | 1.61373 |
| 1987 | 1.63835 |
| 1986 | 1.66019 |
| 1985 | 1.6769 |
| 1984 | 1.68768 |
| 1983 | 1.69247 |
| 1982 | 1.69293 |
| 1981 | 1.69313 |
| 1980 | 1.69548 |
| 1979 | 1.70004 |
| 1978 | 1.70773 |
| 1977 | 1.71817 |
| 1976 | 1.72807 |
| 1975 | 1.73573 |
| 1974 | 1.74139 |
| 1973 | 1.74452 |
| 1972 | 1.74569 |
| 1971 | 1.74774 |
| 1970 | 1.7524 |
| 1969 | 1.76043 |
| 1968 | 1.77243 |
| 1967 | 1.7861 |
| 1966 | 1.7971 |
| 1965 | 1.8029 |
| 1964 | 1.80404 |
| 1963 | 1.80093 |
| 1962 | 1.79237 |
| 1961 | 1.77842 |
| 1960 | 1.7594 |