| 年份 | 纳米比亚 |
|---|---|
| 2023 | - |
| 2022 | 3.00431 |
| 2021 | 3.25048 |
| 2020 | 3.48086 |
| 2019 | 3.29743 |
| 2018 | 3.33269 |
| 2017 | 3.52239 |
| 2016 | 3.97105 |
| 2015 | 4.528 |
| 2014 | 4.32587 |
| 2013 | 3.20642 |
| 2012 | 3.16654 |
| 2011 | 3.57459 |
| 2010 | 3.51474 |
| 2009 | 3.37436 |
| 2008 | 3.13726 |
| 2007 | 2.61042 |
| 2006 | 2.50125 |
| 2005 | 2.64521 |
| 2004 | 2.52759 |
| 2003 | 2.62491 |
| 2002 | 2.61785 |
| 2001 | 3.00874 |
| 2000 | 2.70673 |
| 1999 | 3.12403 |
| 1998 | 2.32184 |
| 1997 | 2.30136 |
| 1996 | 1.9036 |
| 1995 | 1.9479 |
| 1994 | 1.75123 |
| 1993 | 2.46452 |
| 1992 | 4.25042 |
| 1991 | 5.61525 |
| 1990 | 6.421 |
| 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 | - |