| 年份 | 赞比亚 |
|---|---|
| 2023 | - |
| 2022 | 15.3798 |
| 2021 | 15.5516 |
| 2020 | 15.7476 |
| 2019 | 15.9681 |
| 2018 | 16.2153 |
| 2017 | 16.4827 |
| 2016 | 16.7611 |
| 2015 | 17.0434 |
| 2014 | 17.3147 |
| 2013 | 17.5568 |
| 2012 | 17.7617 |
| 2011 | 17.9312 |
| 2010 | 18.065 |
| 2009 | 18.1622 |
| 2008 | 18.2167 |
| 2007 | 18.2366 |
| 2006 | 18.2313 |
| 2005 | 18.2235 |
| 2004 | 18.2316 |
| 2003 | 18.2589 |
| 2002 | 18.303 |
| 2001 | 18.3636 |
| 2000 | 18.4342 |
| 1999 | 18.4876 |
| 1998 | 18.5246 |
| 1997 | 18.5482 |
| 1996 | 18.5604 |
| 1995 | 18.5548 |
| 1994 | 18.5504 |
| 1993 | 18.5639 |
| 1992 | 18.5973 |
| 1991 | 18.65 |
| 1990 | 18.7143 |
| 1989 | 18.7714 |
| 1988 | 18.8203 |
| 1987 | 18.8668 |
| 1986 | 18.8973 |
| 1985 | 18.909 |
| 1984 | 18.9345 |
| 1983 | 18.9999 |
| 1982 | 19.1054 |
| 1981 | 19.2429 |
| 1980 | 19.3941 |
| 1979 | 19.5221 |
| 1978 | 19.6098 |
| 1977 | 19.6749 |
| 1976 | 19.7146 |
| 1975 | 19.7306 |
| 1974 | 19.7305 |
| 1973 | 19.7101 |
| 1972 | 19.6654 |
| 1971 | 19.6108 |
| 1970 | 19.5508 |
| 1969 | 19.5132 |
| 1968 | 19.5152 |
| 1967 | 19.5307 |
| 1966 | 19.5398 |
| 1965 | 19.5312 |
| 1964 | 19.5021 |
| 1963 | 19.4482 |
| 1962 | 19.3709 |
| 1961 | 19.2783 |
| 1960 | 19.1761 |