| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 399.51 |
| 2020 | 292.178 |
| 2019 | 302.053 |
| 2018 | 288.806 |
| 2017 | 269.544 |
| 2016 | 297.446 |
| 2015 | 336.805 |
| 2014 | 375.821 |
| 2013 | 389.904 |
| 2012 | 406.493 |
| 2011 | 414.743 |
| 2010 | 418.544 |
| 2009 | 457.187 |
| 2008 | 469.88 |
| 2007 | 504.234 |
| 2006 | 541.747 |
| 2005 | 589.476 |
| 2004 | 600.525 |
| 2003 | 613.393 |
| 2002 | 618.624 |
| 2001 | 611.28 |
| 2000 | 602.93 |
| 1999 | 591.988 |
| 1998 | 578.733 |
| 1997 | 563.429 |
| 1996 | 556.589 |
| 1995 | 557.788 |
| 1994 | 541.289 |
| 1993 | 493.239 |
| 1992 | 497.7 |
| 1991 | 474.359 |
| 1990 | 448.144 |
| 1989 | 422.188 |
| 1988 | 403.375 |
| 1987 | 380.49 |
| 1986 | 367.595 |
| 1985 | 359.335 |
| 1984 | 359.677 |
| 1983 | 357.434 |
| 1982 | 359.928 |
| 1981 | 362.952 |
| 1980 | 366.44 |
| 1979 | 370.195 |
| 1978 | 373.719 |
| 1977 | 376.03 |
| 1976 | 380.695 |
| 1975 | 385.832 |
| 1974 | 390.324 |
| 1973 | 395.322 |
| 1972 | 400.257 |
| 1971 | 404.906 |
| 1970 | 409.638 |
| 1969 | 413.104 |
| 1968 | 415.812 |
| 1967 | 418.742 |
| 1966 | 421.376 |
| 1965 | 423.886 |
| 1964 | 426.623 |
| 1963 | 429.586 |
| 1962 | 433.694 |
| 1961 | 437.297 |
| 1960 | 441.089 |