| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 289.76 |
| 2020 | 201.368 |
| 2019 | 208.597 |
| 2018 | 218.279 |
| 2017 | 171.355 |
| 2016 | 198.163 |
| 2015 | 237.818 |
| 2014 | 257.907 |
| 2013 | 276.868 |
| 2012 | 317.474 |
| 2011 | 317.959 |
| 2010 | 343.517 |
| 2009 | 382.267 |
| 2008 | 417.562 |
| 2007 | 451.354 |
| 2006 | 485.979 |
| 2005 | 503.403 |
| 2004 | 520.123 |
| 2003 | 529.813 |
| 2002 | 532.133 |
| 2001 | 527.326 |
| 2000 | 516.182 |
| 1999 | 498.772 |
| 1998 | 477.016 |
| 1997 | 453.805 |
| 1996 | 429.612 |
| 1995 | 405.995 |
| 1994 | 381.567 |
| 1993 | 357.143 |
| 1992 | 331.452 |
| 1991 | 306.347 |
| 1990 | 283.111 |
| 1989 | 263.397 |
| 1988 | 252.8 |
| 1987 | 237.732 |
| 1986 | 232.473 |
| 1985 | 231.692 |
| 1984 | 234.324 |
| 1983 | 239.291 |
| 1982 | 243.43 |
| 1981 | 247.681 |
| 1980 | 251.938 |
| 1979 | 255.491 |
| 1978 | 258.405 |
| 1977 | 262.829 |
| 1976 | 267.97 |
| 1975 | 272.817 |
| 1974 | 277.558 |
| 1973 | 282.166 |
| 1972 | 286.409 |
| 1971 | 290.306 |
| 1970 | 293.873 |
| 1969 | 297.213 |
| 1968 | 300.485 |
| 1967 | 303.778 |
| 1966 | 307.319 |
| 1965 | 310.81 |
| 1964 | 314.449 |
| 1963 | 318.073 |
| 1962 | 321.862 |
| 1961 | 325.325 |
| 1960 | 329.135 |