| 年份 | 赞比亚 |
|---|---|
| 2023 | - |
| 2022 | 4.76594 |
| 2021 | 4.70629 |
| 2020 | 4.6414 |
| 2019 | 4.56235 |
| 2018 | 4.46752 |
| 2017 | 4.36454 |
| 2016 | 4.2553 |
| 2015 | 4.14284 |
| 2014 | 4.03134 |
| 2013 | 3.92192 |
| 2012 | 3.81613 |
| 2011 | 3.71888 |
| 2010 | 3.63016 |
| 2009 | 3.54844 |
| 2008 | 3.4781 |
| 2007 | 3.41785 |
| 2006 | 3.36373 |
| 2005 | 3.31132 |
| 2004 | 3.25865 |
| 2003 | 3.20299 |
| 2002 | 3.14222 |
| 2001 | 3.07541 |
| 2000 | 3.00695 |
| 1999 | 2.9473 |
| 1998 | 2.89426 |
| 1997 | 2.8449 |
| 1996 | 2.80133 |
| 1995 | 2.76996 |
| 1994 | 2.74505 |
| 1993 | 2.72392 |
| 1992 | 2.72675 |
| 1991 | 2.7567 |
| 1990 | 2.79539 |
| 1989 | 2.84322 |
| 1988 | 2.90073 |
| 1987 | 2.94349 |
| 1986 | 2.96541 |
| 1985 | 2.98897 |
| 1984 | 3.02275 |
| 1983 | 3.06609 |
| 1982 | 3.11289 |
| 1981 | 3.16281 |
| 1980 | 3.2176 |
| 1979 | 3.27367 |
| 1978 | 3.32604 |
| 1977 | 3.3737 |
| 1976 | 3.42366 |
| 1975 | 3.48002 |
| 1974 | 3.53973 |
| 1973 | 3.60094 |
| 1972 | 3.66425 |
| 1971 | 3.72583 |
| 1970 | 3.78309 |
| 1969 | 3.82802 |
| 1968 | 3.85788 |
| 1967 | 3.8831 |
| 1966 | 3.91189 |
| 1965 | 3.94788 |
| 1964 | 3.99048 |
| 1963 | 4.03954 |
| 1962 | 4.09316 |
| 1961 | 4.14454 |
| 1960 | 4.18903 |