| 年份 | 赞比亚 |
|---|---|
| 2023 | - |
| 2022 | 3.5916 |
| 2021 | 3.49797 |
| 2020 | 3.39909 |
| 2019 | 3.29688 |
| 2018 | 3.19424 |
| 2017 | 3.09307 |
| 2016 | 2.99743 |
| 2015 | 2.90921 |
| 2014 | 2.8301 |
| 2013 | 2.76196 |
| 2012 | 2.70385 |
| 2011 | 2.65211 |
| 2010 | 2.60189 |
| 2009 | 2.54894 |
| 2008 | 2.49344 |
| 2007 | 2.43554 |
| 2006 | 2.37605 |
| 2005 | 2.31616 |
| 2004 | 2.2579 |
| 2003 | 2.20244 |
| 2002 | 2.15048 |
| 2001 | 2.10254 |
| 2000 | 2.06294 |
| 1999 | 2.03582 |
| 1998 | 2.01722 |
| 1997 | 2.01952 |
| 1996 | 2.04656 |
| 1995 | 2.08621 |
| 1994 | 2.13542 |
| 1993 | 2.19393 |
| 1992 | 2.24185 |
| 1991 | 2.2738 |
| 1990 | 2.30551 |
| 1989 | 2.34195 |
| 1988 | 2.38551 |
| 1987 | 2.43379 |
| 1986 | 2.48089 |
| 1985 | 2.52455 |
| 1984 | 2.56543 |
| 1983 | 2.59963 |
| 1982 | 2.62645 |
| 1981 | 2.65546 |
| 1980 | 2.69336 |
| 1979 | 2.73718 |
| 1978 | 2.78466 |
| 1977 | 2.83502 |
| 1976 | 2.88529 |
| 1975 | 2.93357 |
| 1974 | 2.97907 |
| 1973 | 3.02051 |
| 1972 | 3.05912 |
| 1971 | 3.09861 |
| 1970 | 3.14125 |
| 1969 | 3.18318 |
| 1968 | 3.22454 |
| 1967 | 3.26846 |
| 1966 | 3.31098 |
| 1965 | 3.34902 |
| 1964 | 3.38314 |
| 1963 | 3.41252 |
| 1962 | 3.43687 |
| 1961 | 3.45944 |
| 1960 | 3.4817 |