| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | 50.6213 |
| 2021 | 50.6365 |
| 2020 | 50.6477 |
| 2019 | 50.666 |
| 2018 | 50.6945 |
| 2017 | 50.725 |
| 2016 | 50.7491 |
| 2015 | 50.7715 |
| 2014 | 50.7875 |
| 2013 | 50.7979 |
| 2012 | 50.8142 |
| 2011 | 50.8364 |
| 2010 | 50.8701 |
| 2009 | 50.9187 |
| 2008 | 50.9777 |
| 2007 | 51.0458 |
| 2006 | 51.1167 |
| 2005 | 51.1806 |
| 2004 | 51.2382 |
| 2003 | 51.2971 |
| 2002 | 51.3564 |
| 2001 | 51.417 |
| 2000 | 51.4795 |
| 1999 | 51.5439 |
| 1998 | 51.6087 |
| 1997 | 51.6725 |
| 1996 | 51.7348 |
| 1995 | 51.7936 |
| 1994 | 51.8516 |
| 1993 | 51.9185 |
| 1992 | 51.99 |
| 1991 | 51.993 |
| 1990 | 51.928 |
| 1989 | 51.8627 |
| 1988 | 51.7968 |
| 1987 | 51.7324 |
| 1986 | 51.6734 |
| 1985 | 51.6234 |
| 1984 | 51.5853 |
| 1983 | 51.5602 |
| 1982 | 51.5409 |
| 1981 | 51.6054 |
| 1980 | 51.7838 |
| 1979 | 52.0043 |
| 1978 | 52.2522 |
| 1977 | 52.522 |
| 1976 | 52.814 |
| 1975 | 53.1268 |
| 1974 | 53.4608 |
| 1973 | 53.8168 |
| 1972 | 54.1605 |
| 1971 | 54.3615 |
| 1970 | 54.2715 |
| 1969 | 53.9652 |
| 1968 | 53.6115 |
| 1967 | 53.2531 |
| 1966 | 52.8916 |
| 1965 | 52.5294 |
| 1964 | 52.3291 |
| 1963 | 52.2888 |
| 1962 | 52.2437 |
| 1961 | 52.19 |
| 1960 | 52.1266 |