| 年份 | 博茨瓦纳岁数 |
|---|---|
| 2023 | 66.67 |
| 2022 | 66.29 |
| 2021 | 61.21 |
| 2020 | 65.04 |
| 2019 | 64.78 |
| 2018 | 64.06 |
| 2017 | 63.22 |
| 2016 | 62.23 |
| 2015 | 61.21 |
| 2014 | 60.20 |
| 2013 | 59.21 |
| 2012 | 58.31 |
| 2011 | 57.51 |
| 2010 | 56.79 |
| 2009 | 56.11 |
| 2008 | 55.89 |
| 2007 | 55.02 |
| 2006 | 53.47 |
| 2005 | 52.49 |
|
|
|
| 2004 | 51.76 |
| 2003 | 51.04 |
| 2002 | 50.58 |
| 2001 | 50.46 |
| 2000 | 50.50 |
| 1999 | 50.66 |
| 1998 | 51.00 |
| 1997 | 51.48 |
| 1996 | 51.95 |
| 1995 | 51.89 |
| 1994 | 53.30 |
| 1993 | 54.71 |
| 1992 | 55.23 |
| 1991 | 55.52 |
| 1990 | 56.66 |
| 1989 | 57.80 |
| 1988 | 58.42 |
| 1987 | 59.62 |
| 1986 | 60.27 |
| 1985 | 60.62 |
|
|
|
| 1984 | 60.80 |
| 1983 | 60.78 |
| 1982 | 60.65 |
| 1981 | 60.34 |
| 1980 | 59.89 |
| 1979 | 59.43 |
| 1978 | 58.85 |
| 1977 | 58.26 |
| 1976 | 57.61 |
| 1975 | 56.95 |
| 1974 | 56.32 |
| 1973 | 55.69 |
| 1972 | 55.08 |
| 1971 | 54.50 |
| 1970 | 53.94 |
| 1969 | 53.42 |
| 1968 | 52.94 |
| 1967 | 52.48 |
| 1966 | 52.04 |
| 1965 | 51.63 |
| 1964 | 51.19 |
| 1963 | 50.73 |
| 1962 | 50.24 |
| 1961 | 49.70 |
| 1960 | 49.18 |