| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | - |
| 2016 | - |
| 2015 | - |
| 2014 | 4.29022 |
| 2013 | 3.25023 |
| 2012 | 3.52204 |
| 2011 | - |
| 2010 | - |
| 2009 | 3.58237 |
| 2008 | 3.57609 |
| 2007 | 3.8113 |
| 2006 | 3.57193 |
| 2005 | 3.60655 |
| 2004 | 3.49342 |
| 2003 | 3.53788 |
| 2002 | 2.43109 |
| 2001 | 2.50735 |
| 2000 | 2.64695 |
| 1999 | 2.73276 |
| 1998 | 2.50455 |
| 1997 | - |
| 1996 | 2.67774 |
| 1995 | 2.85045 |
| 1994 | 2.26111 |
| 1993 | 2.23101 |
| 1992 | 2.99803 |
| 1991 | 4.36482 |
| 1990 | 4.67057 |
| 1989 | 4.92988 |
| 1988 | 4.9102 |
| 1987 | 5.35113 |
| 1986 | 4.82953 |
| 1985 | 5.66455 |
| 1984 | 5.93408 |
| 1983 | 6.56736 |
| 1982 | 5.74237 |
| 1981 | 4.69857 |
| 1980 | - |
| 1979 | 2.69465 |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | 0.93843 |
| 1971 | 0.707 |
| 1970 | 0.3632 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |