| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 5.96834 |
| 2020 | 5.18882 |
| 2019 | 5.11034 |
| 2018 | 4.83492 |
| 2017 | 5.21955 |
| 2016 | 4.47308 |
| 2015 | 4.93008 |
| 2014 | 4.55208 |
| 2013 | 4.57348 |
| 2012 | 5.59244 |
| 2011 | 5.30641 |
| 2010 | 6.20185 |
| 2009 | 6.31002 |
| 2008 | 6.78572 |
| 2007 | 5.02393 |
| 2006 | 4.42223 |
| 2005 | - |
| 2004 | - |
| 2003 | - |
| 2002 | - |
| 2001 | - |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | 1.90413 |
| 1995 | 2.04426 |
| 1994 | 1.81675 |
| 1993 | 1.72172 |
| 1992 | 1.88998 |
| 1991 | 1.21866 |
| 1990 | 1.12021 |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |