| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 17.403 |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | 8.08053 |
| 2016 | - |
| 2015 | 10.6236 |
| 2014 | 14.5265 |
| 2013 | 13.8427 |
| 2012 | 13.1153 |
| 2011 | - |
| 2010 | - |
| 2009 | 15.4045 |
| 2008 | 15.0242 |
| 2007 | 14.306 |
| 2006 | 13.2509 |
| 2005 | 13.7448 |
| 2004 | 15.7935 |
| 2003 | 15.5398 |
| 2002 | 16.0992 |
| 2001 | 16.0927 |
| 2000 | 17.4943 |
| 1999 | 18.34 |
| 1998 | 17.3757 |
| 1997 | - |
| 1996 | 20.3011 |
| 1995 | 20.7433 |
| 1994 | 11.621 |
| 1993 | 10.9912 |
| 1992 | 9.9265 |
| 1991 | 8.617 |
| 1990 | 10.606 |
| 1989 | 9.81365 |
| 1988 | 9.1585 |
| 1987 | 8.86961 |
| 1986 | 8.63645 |
| 1985 | 7.89076 |
| 1984 | 8.79368 |
| 1983 | 8.18831 |
| 1982 | - |
| 1981 | 11.4374 |
| 1980 | 15.162 |
| 1979 | 19.7206 |
| 1978 | 21.7088 |
| 1977 | 22.9031 |
| 1976 | 27.6397 |
| 1975 | 32.5113 |
| 1974 | 39.8445 |
| 1973 | 44.1936 |
| 1972 | 47.5252 |
| 1971 | 49.5231 |
| 1970 | 46.6385 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |