| 年份 | 博茨瓦纳 |
|---|---|
| 2023 | - |
| 2022 | 6657.58 |
| 2021 | 6395.14 |
| 2020 | 5810.9 |
| 2019 | 6485.57 |
| 2018 | 6418.71 |
| 2017 | 6287.83 |
| 2016 | 6166.24 |
| 2015 | 5869.74 |
| 2014 | 6291.27 |
| 2013 | 6068 |
| 2012 | 5566.68 |
| 2011 | 5684.36 |
| 2010 | 5428.3 |
| 2009 | 5031.98 |
| 2008 | 5982.66 |
| 2007 | 5913.07 |
| 2006 | 5700.22 |
| 2005 | 5360.02 |
| 2004 | 5219.41 |
| 2003 | 5171.54 |
| 2002 | 5030.27 |
| 2001 | 4831.78 |
| 2000 | 4917.23 |
| 1999 | 4922.37 |
| 1998 | 4585.67 |
| 1997 | 4667.89 |
| 1996 | 4410.39 |
| 1995 | 4271.47 |
| 1994 | 4097.31 |
| 1993 | 4065.49 |
| 1992 | 4105.77 |
| 1991 | 4105.3 |
| 1990 | 3931.73 |
| 1989 | 3794.93 |
| 1988 | 3464.09 |
| 1987 | 2997.26 |
| 1986 | 2772.31 |
| 1985 | 2654.14 |
| 1984 | 2566.71 |
| 1983 | 2450.37 |
| 1982 | 2245.48 |
| 1981 | 2083.95 |
| 1980 | 2000.66 |
| 1979 | 1876.65 |
| 1978 | 1760.25 |
| 1977 | 1620.53 |
| 1976 | 1523.28 |
| 1975 | 1449.5 |
| 1974 | 1406.88 |
| 1973 | 1360.64 |
| 1972 | 1176.55 |
| 1971 | 965.71 |
| 1970 | 782.942 |
| 1969 | 674.768 |
| 1968 | 590.232 |
| 1967 | 537.45 |
| 1966 | 510.803 |
| 1965 | 483.595 |
| 1964 | 464.096 |
| 1963 | 444.886 |
| 1962 | 429.892 |
| 1961 | 412.266 |
| 1960 | 396.396 |