| 年份 | 纳米比亚 |
|---|---|
| 2023 | - |
| 2022 | 8.33678 |
| 2021 | 8.33698 |
| 2020 | 8.39054 |
| 2019 | 8.81312 |
| 2018 | 9.17348 |
| 2017 | 9.24684 |
| 2016 | 9.50873 |
| 2015 | 10.3678 |
| 2014 | 10.3509 |
| 2013 | 8.37 |
| 2012 | 9.03661 |
| 2011 | 9.29145 |
| 2010 | 10.5015 |
| 2009 | 10.5574 |
| 2008 | 11.0491 |
| 2007 | 10.0092 |
| 2006 | 9.45975 |
| 2005 | 9.4642 |
| 2004 | 8.82774 |
| 2003 | 8.37181 |
| 2002 | 8.70238 |
| 2001 | 8.80922 |
| 2000 | 7.78847 |
| 1999 | 8.68515 |
| 1998 | 6.58391 |
| 1997 | 6.58299 |
| 1996 | 5.52708 |
| 1995 | 5.83314 |
| 1994 | 5.61182 |
| 1993 | 6.85146 |
| 1992 | 11.5229 |
| 1991 | 15.4344 |
| 1990 | 20.2091 |
| 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 | - |