| 年份 | 博茨瓦纳  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 8.26十万 | 
| 2021 | 8.09十万 | 
| 2020 | 7.92十万 | 
| 2019 | 7.75十万 | 
| 2018 | 7.58十万 | 
| 2017 | 7.4十万 | 
| 2016 | 7.22十万 | 
| 2015 | 7.05十万 | 
| 2014 | 6.9十万 | 
| 2013 | 6.75十万 | 
| 2012 | 6.61十万 | 
| 2011 | 6.47十万 | 
| 2010 | 6.32十万 | 
| 2009 | 6.15十万 | 
| 2008 | 5.98十万 | 
| 2007 | 5.82十万 | 
| 2006 | 5.66十万 | 
| 2005 | 5.5十万 | 
| 2004 | 5.36十万 | 
| 2003 | 5.21十万 | 
| 2002 | 5.06十万 | 
| 2001 | 4.91十万 | 
| 2000 | 4.75十万 | 
| 1999 | 4.59十万 | 
| 1998 | 4.42十万 | 
| 1997 | 4.26十万 | 
| 1996 | 4.1十万 | 
| 1995 | 3.94十万 | 
| 1994 | 3.79十万 | 
| 1993 | 3.63十万 | 
| 1992 | 3.48十万 | 
| 1991 | 3.35十万 | 
| 1990 | 3.24十万 | 
| 1989 | 3.13十万 | 
| 1988 | 3.02十万 | 
| 1987 | 2.92十万 | 
| 1986 | 2.82十万 | 
| 1985 | 2.73十万 | 
| 1984 | 2.63十万 | 
| 1983 | 2.54十万 | 
| 1982 | 2.46十万 | 
| 1981 | 2.35十万 | 
| 1980 | 2.22十万 | 
| 1979 | 2.08十万 | 
| 1978 | 1.94十万 | 
| 1977 | 1.81十万 | 
| 1976 | 1.68十万 | 
| 1975 | 1.55十万 | 
| 1974 | 1.43十万 | 
| 1973 | 1.32十万 | 
| 1972 | 1.22十万 | 
| 1971 | 1.15十万 | 
| 1970 | 1.14十万 | 
| 1969 | 1.16十万 | 
| 1968 | 1.18十万 | 
| 1967 | 1.21十万 | 
| 1966 | 1.23十万 | 
| 1965 | 1.26十万 | 
| 1964 | 1.26十万 | 
| 1963 | 1.24十万 | 
| 1962 | 1.23十万 | 
| 1961 | 1.22十万 | 
| 1960 | 1.21十万 |