年份 | 博茨瓦纳 |
---|---|
2023 | - |
2022 | - |
2021 | 18 |
2020 | 18.5 |
2019 | 19.2 |
2018 | 19.9 |
2017 | 20.4 |
2016 | 21 |
2015 | 21.6 |
2014 | 22.4 |
2013 | 23.3 |
2012 | 24.4 |
2011 | 25.1 |
2010 | 25.7 |
2009 | 25.7 |
2008 | 25.2 |
2007 | 24.2 |
2006 | 22.4 |
2005 | 20.2 |
2004 | 17 |
2003 | 13.8 |
2002 | 11.3 |
2001 | 9.3 |
2000 | 8.1 |
1999 | 7.4 |
1998 | 7.3 |
1997 | 7.7 |
1996 | 8.3 |
1995 | 9.2 |
1994 | 10.3 |
1993 | 11.7 |
1992 | 13.4 |
1991 | 15.4 |
1990 | 17.8 |
1989 | 20.5 |
1988 | 22.8 |
1987 | 24.7 |
1986 | 26.4 |
1985 | 27.7 |
1984 | 28.8 |
1983 | 29.5 |
1982 | 29.9 |
1981 | 30.1 |
1980 | 30.4 |
1979 | 30.6 |
1978 | 31 |
1977 | 31.4 |
1976 | 31.8 |
1975 | 32.4 |
1974 | 33 |
1973 | 33.5 |
1972 | 34.1 |
1971 | 34.8 |
1970 | 35.6 |
1969 | 36.4 |
1968 | 37.4 |
1967 | 38.5 |
1966 | 39.3 |
1965 | 40.2 |
1964 | - |
1963 | - |
1962 | - |
1961 | - |
1960 | - |