| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | 43.47 |
| 2021 | 41.9419 |
| 2020 | 31.2903 |
| 2019 | 37.0878 |
| 2018 | 44.2281 |
| 2017 | 42.92 |
| 2016 | 54.6114 |
| 2015 | 53.0909 |
| 2014 | 61.283 |
| 2013 | 61.3798 |
| 2012 | 48.115 |
| 2011 | 44.2364 |
| 2010 | 42.1443 |
| 2009 | 35.8337 |
| 2008 | 46.9469 |
| 2007 | 56.48 |
| 2006 | 51.7808 |
| 2005 | 52.9236 |
| 2004 | 49.6138 |
| 2003 | 48.8269 |
| 2002 | 52.1574 |
| 2001 | 48.6576 |
| 2000 | 51.8318 |
| 1999 | 55.1973 |
| 1998 | 49.2892 |
| 1997 | 60.8807 |
| 1996 | 53.8284 |
| 1995 | 50.8365 |
| 1994 | 47.8224 |
| 1993 | 47.0958 |
| 1992 | 48.1796 |
| 1991 | 53.0295 |
| 1990 | 55.0554 |
| 1989 | 59.2246 |
| 1988 | 70.5219 |
| 1987 | 75.1296 |
| 1986 | 68.3308 |
| 1985 | 66.291 |
| 1984 | 60.8113 |
| 1983 | 62.0834 |
| 1982 | 54.562 |
| 1981 | 49.7051 |
| 1980 | 53.0592 |
| 1979 | 54.123 |
| 1978 | 52.0605 |
| 1977 | 50.9007 |
| 1976 | 50.3864 |
| 1975 | 43.5941 |
| 1974 | 40.9233 |
| 1973 | 38.8315 |
| 1972 | 37.3721 |
| 1971 | 33.1498 |
| 1970 | 24.6555 |
| 1969 | 22.7723 |
| 1968 | 23.0526 |
| 1967 | 24.6138 |
| 1966 | 29.2683 |
| 1965 | 31.7073 |
| 1964 | 28.811 |
| 1963 | 28.9944 |
| 1962 | 27.926 |
| 1961 | 27.2163 |
| 1960 | 26.2756 |