| 年份 | 纳米比亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 8.91072 |
| 2020 | 6.62059 |
| 2019 | 8.50963 |
| 2018 | 8.86977 |
| 2017 | 8.83186 |
| 2016 | 9.50945 |
| 2015 | 9.96658 |
| 2014 | 9.49382 |
| 2013 | 10.0765 |
| 2012 | 7.65158 |
| 2011 | 10.8497 |
| 2010 | 8.08697 |
| 2009 | 8.75482 |
| 2008 | 7.71537 |
| 2007 | 8.30601 |
| 2006 | 7.51999 |
| 2005 | 9.11797 |
| 2004 | 6.02666 |
| 2003 | 6.42875 |
| 2002 | 7.52565 |
| 2001 | 8.41869 |
| 2000 | 9.04294 |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | - |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | 9.7049 |
| 1991 | 8.45434 |
| 1990 | 8.00933 |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |