| 年份 | 纳米比亚 |
|---|---|
| 2023 | - |
| 2022 | 6.76478 |
| 2021 | 1.97087 |
| 2020 | 4.63153 |
| 2019 | 0.926319 |
| 2018 | 4.42848 |
| 2017 | 9.91904 |
| 2016 | 7.96867 |
| 2015 | 3.86457 |
| 2014 | 8.23489 |
| 2013 | 4.03979 |
| 2012 | 11.2603 |
| 2011 | 3.81488 |
| 2010 | 3.7259 |
| 2009 | 6.9454 |
| 2008 | 10.9614 |
| 2007 | 9.28643 |
| 2006 | 9.40659 |
| 2005 | 5.59808 |
| 2004 | 2.04025 |
| 2003 | 1.27111 |
| 2002 | 10.0036 |
| 2001 | 11.2038 |
| 2000 | 11.2811 |
| 1999 | 6.78526 |
| 1998 | 8.26956 |
| 1997 | 7.11317 |
| 1996 | 15.1762 |
| 1995 | 6.68151 |
| 1994 | 20.4591 |
| 1993 | 10.3619 |
| 1992 | 10.2681 |
| 1991 | 5.9869 |
| 1990 | 6.38836 |
| 1989 | 15.0727 |
| 1988 | 20.1526 |
| 1987 | 9.39995 |
| 1986 | 10.0829 |
| 1985 | 23.9359 |
| 1984 | 12.7348 |
| 1983 | 13.3249 |
| 1982 | 16.9793 |
| 1981 | 3.66573 |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |