| 年份 | 纳米比亚 |
|---|---|
| 2023 | - |
| 2022 | 9.59204 |
| 2021 | 9.61421 |
| 2020 | 9.73212 |
| 2019 | 9.93683 |
| 2018 | 10.1845 |
| 2017 | 10.4251 |
| 2016 | 10.6387 |
| 2015 | 10.8485 |
| 2014 | 11.0881 |
| 2013 | 11.3787 |
| 2012 | 11.7297 |
| 2011 | 12.1192 |
| 2010 | 12.4706 |
| 2009 | 12.6354 |
| 2008 | 12.583 |
| 2007 | 12.3955 |
| 2006 | 12.099 |
| 2005 | 11.729 |
| 2004 | 11.4126 |
| 2003 | 11.1937 |
| 2002 | 11.0096 |
| 2001 | 10.8744 |
| 2000 | 10.8001 |
| 1999 | 10.7679 |
| 1998 | 10.8033 |
| 1997 | 10.9157 |
| 1996 | 11.0442 |
| 1995 | 11.1624 |
| 1994 | 11.2937 |
| 1993 | 11.4157 |
| 1992 | 11.5268 |
| 1991 | 11.6636 |
| 1990 | 11.8081 |
| 1989 | 11.8991 |
| 1988 | 11.886 |
| 1987 | 11.8005 |
| 1986 | 11.6826 |
| 1985 | 11.5335 |
| 1984 | 11.3538 |
| 1983 | 11.1454 |
| 1982 | 10.9119 |
| 1981 | 10.6833 |
| 1980 | 10.4968 |
| 1979 | 10.3395 |
| 1978 | 10.2328 |
| 1977 | 10.1862 |
| 1976 | 10.1752 |
| 1975 | 10.1979 |
| 1974 | 10.2421 |
| 1973 | 10.3028 |
| 1972 | 10.3686 |
| 1971 | 10.4324 |
| 1970 | 10.4914 |
| 1969 | 10.535 |
| 1968 | 10.5575 |
| 1967 | 10.5968 |
| 1966 | 10.6679 |
| 1965 | 10.7351 |
| 1964 | 10.7876 |
| 1963 | 10.8207 |
| 1962 | 10.784 |
| 1961 | 10.6594 |
| 1960 | 10.4911 |