| 年份 | 赞比亚 |
|---|---|
| 2023 | - |
| 2022 | 0.204512 |
| 2021 | 0.208175 |
| 2020 | 0.210818 |
| 2019 | 0.211523 |
| 2018 | 0.212196 |
| 2017 | 0.214053 |
| 2016 | 0.216689 |
| 2015 | 0.219716 |
| 2014 | 0.22302 |
| 2013 | 0.226359 |
| 2012 | 0.229778 |
| 2011 | 0.234065 |
| 2010 | 0.239902 |
| 2009 | 0.24741 |
| 2008 | 0.256214 |
| 2007 | 0.266225 |
| 2006 | 0.277062 |
| 2005 | 0.288372 |
| 2004 | 0.299699 |
| 2003 | 0.310731 |
| 2002 | 0.321552 |
| 2001 | 0.332707 |
| 2000 | 0.344253 |
| 1999 | 0.355285 |
| 1998 | 0.366094 |
| 1997 | 0.376878 |
| 1996 | 0.386903 |
| 1995 | 0.395407 |
| 1994 | 0.402711 |
| 1993 | 0.408777 |
| 1992 | 0.413714 |
| 1991 | 0.41841 |
| 1990 | 0.423328 |
| 1989 | 0.428246 |
| 1988 | 0.433201 |
| 1987 | 0.43822 |
| 1986 | 0.442996 |
| 1985 | 0.446883 |
| 1984 | 0.449448 |
| 1983 | 0.45045 |
| 1982 | 0.450313 |
| 1981 | 0.44961 |
| 1980 | 0.448365 |
| 1979 | 0.446998 |
| 1978 | 0.446784 |
| 1977 | 0.447761 |
| 1976 | 0.447335 |
| 1975 | 0.44372 |
| 1974 | 0.436844 |
| 1973 | 0.426018 |
| 1972 | 0.412339 |
| 1971 | 0.400135 |
| 1970 | 0.392372 |
| 1969 | 0.390163 |
| 1968 | 0.394792 |
| 1967 | 0.405021 |
| 1966 | 0.41619 |
| 1965 | 0.424986 |
| 1964 | 0.432018 |
| 1963 | 0.437022 |
| 1962 | 0.439127 |
| 1961 | 0.440676 |
| 1960 | 0.443487 |