| 年份 | 纳米比亚 |
|---|---|
| 2023 | - |
| 2022 | 14.3795 |
| 2021 | 12.7186 |
| 2020 | -9.84589 |
| 2019 | -0.101229 |
| 2018 | -0.190541 |
| 2017 | -6.75686 |
| 2016 | 15.8129 |
| 2015 | 13.7362 |
| 2014 | 4.35766 |
| 2013 | 9.45473 |
| 2012 | 9.59637 |
| 2011 | 8.8753 |
| 2010 | -5.5282 |
| 2009 | 13.9065 |
| 2008 | 12.787 |
| 2007 | 6.11214 |
| 2006 | 8.69721 |
| 2005 | 0.788764 |
| 2004 | 1.9016 |
| 2003 | 8.30619 |
| 2002 | -1.4638 |
| 2001 | 9.00132 |
| 2000 | 5.80108 |
| 1999 | 1.34822 |
| 1998 | 3.66161 |
| 1997 | 7.46567 |
| 1996 | 10.6756 |
| 1995 | 3.0489 |
| 1994 | 0.620785 |
| 1993 | -0.207736 |
| 1992 | -3.41679 |
| 1991 | 14.552 |
| 1990 | -17.357 |
| 1989 | 2.95564 |
| 1988 | -6.34477 |
| 1987 | 18.5897 |
| 1986 | 7.90064 |
| 1985 | -13.8776 |
| 1984 | 3.58824 |
| 1983 | -4.61352 |
| 1982 | 1.96842 |
| 1981 | 36.6384 |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |