| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 58.691 |
| 2020 | 63.142 |
| 2019 | 62.934 |
| 2018 | 63.336 |
| 2017 | 63.968 |
| 2016 | 62.77 |
| 2015 | 61.262 |
| 2014 | 59.781 |
| 2013 | 59.302 |
| 2012 | 58.587 |
| 2011 | 58.173 |
| 2010 | 58.093 |
| 2009 | 56.431 |
| 2008 | 55.689 |
| 2007 | 54.371 |
| 2006 | 52.596 |
| 2005 | 50.783 |
| 2004 | 49.902 |
| 2003 | 49.199 |
| 2002 | 48.837 |
| 2001 | 48.86 |
| 2000 | 49.136 |
| 1999 | 49.692 |
| 1998 | 50.342 |
| 1997 | 51.054 |
| 1996 | 51.669 |
| 1995 | 51.927 |
| 1994 | 52.848 |
| 1993 | 54.749 |
| 1992 | 54.865 |
| 1991 | 55.968 |
| 1990 | 57.057 |
| 1989 | 58.021 |
| 1988 | 58.469 |
| 1987 | 59.292 |
| 1986 | 59.533 |
| 1985 | 59.566 |
| 1984 | 59.337 |
| 1983 | 59.107 |
| 1982 | 58.71 |
| 1981 | 58.277 |
| 1980 | 57.807 |
| 1979 | 57.32 |
| 1978 | 56.815 |
| 1977 | 56.312 |
| 1976 | 55.739 |
| 1975 | 55.136 |
| 1974 | 54.556 |
| 1973 | 53.974 |
| 1972 | 53.397 |
| 1971 | 52.848 |
| 1970 | 52.322 |
| 1969 | 51.856 |
| 1968 | 51.403 |
| 1967 | 50.973 |
| 1966 | 50.56 |
| 1965 | 50.163 |
| 1964 | 49.733 |
| 1963 | 49.29 |
| 1962 | 48.809 |
| 1961 | 48.332 |
| 1960 | 47.842 |