| 年份 | 赞比亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 0.127495 | 
| 2021 | 0.134884 | 
| 2020 | 0.141943 | 
| 2019 | 0.146227 | 
| 2018 | 0.148765 | 
| 2017 | 0.151473 | 
| 2016 | 0.154725 | 
| 2015 | 0.158718 | 
| 2014 | 0.163396 | 
| 2013 | 0.168668 | 
| 2012 | 0.17446 | 
| 2011 | 0.180682 | 
| 2010 | 0.18744 | 
| 2009 | 0.194837 | 
| 2008 | 0.202582 | 
| 2007 | 0.210559 | 
| 2006 | 0.218768 | 
| 2005 | 0.227043 | 
| 2004 | 0.235092 | 
| 2003 | 0.242998 | 
| 2002 | 0.250801 | 
| 2001 | 0.258332 | 
| 2000 | 0.265318 | 
| 1999 | 0.271101 | 
| 1998 | 0.275777 | 
| 1997 | 0.279678 | 
| 1996 | 0.283092 | 
| 1995 | 0.285964 | 
| 1994 | 0.288402 | 
| 1993 | 0.290363 | 
| 1992 | 0.291755 | 
| 1991 | 0.292681 | 
| 1990 | 0.293187 | 
| 1989 | 0.293254 | 
| 1988 | 0.29294 | 
| 1987 | 0.29235 | 
| 1986 | 0.292027 | 
| 1985 | 0.292003 | 
| 1984 | 0.291924 | 
| 1983 | 0.29213 | 
| 1982 | 0.292819 | 
| 1981 | 0.292929 | 
| 1980 | 0.291322 | 
| 1979 | 0.288281 | 
| 1978 | 0.283961 | 
| 1977 | 0.278686 | 
| 1976 | 0.273908 | 
| 1975 | 0.270767 | 
| 1974 | 0.269313 | 
| 1973 | 0.270026 | 
| 1972 | 0.273016 | 
| 1971 | 0.276448 | 
| 1970 | 0.278922 | 
| 1969 | 0.281427 | 
| 1968 | 0.28394 | 
| 1967 | 0.285301 | 
| 1966 | 0.28632 | 
| 1965 | 0.287676 | 
| 1964 | 0.28904 | 
| 1963 | 0.289993 | 
| 1962 | 0.290572 | 
| 1961 | 0.290552 | 
| 1960 | 0.289518 |