| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | - |
| 2016 | - |
| 2015 | - |
| 2014 | 6.25473 |
| 2013 | 5.48458 |
| 2012 | 5.75755 |
| 2011 | - |
| 2010 | - |
| 2009 | 5.47805 |
| 2008 | 5.49031 |
| 2007 | 5.93025 |
| 2006 | 5.72458 |
| 2005 | 5.7806 |
| 2004 | 5.66986 |
| 2003 | 5.81471 |
| 2002 | 3.93074 |
| 2001 | 3.96548 |
| 2000 | 4.13562 |
| 1999 | 3.87975 |
| 1998 | 3.68324 |
| 1997 | - |
| 1996 | 3.89588 |
| 1995 | 4.10514 |
| 1994 | 3.15497 |
| 1993 | 3.00628 |
| 1992 | 3.65366 |
| 1991 | 4.76849 |
| 1990 | 5.09339 |
| 1989 | 4.94132 |
| 1988 | 4.9926 |
| 1987 | 5.26973 |
| 1986 | 4.62474 |
| 1985 | 5.70835 |
| 1984 | 5.82193 |
| 1983 | 6.36873 |
| 1982 | 5.51322 |
| 1981 | 4.54423 |
| 1980 | - |
| 1979 | 2.55195 |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | 0.8157 |
| 1971 | 0.76555 |
| 1970 | 0.29783 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |