| 年份 | 纳米比亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 27.439 |
| 2020 | 27.876 |
| 2019 | 28.433 |
| 2018 | 29.008 |
| 2017 | 29.503 |
| 2016 | 30.051 |
| 2015 | 30.394 |
| 2014 | 30.716 |
| 2013 | 30.879 |
| 2012 | 31.054 |
| 2011 | 30.776 |
| 2010 | 30.423 |
| 2009 | 30.114 |
| 2008 | 29.73 |
| 2007 | 29.292 |
| 2006 | 29.005 |
| 2005 | 29.009 |
| 2004 | 29.012 |
| 2003 | 29.18 |
| 2002 | 29.68 |
| 2001 | 30.387 |
| 2000 | 31.405 |
| 1999 | 32.272 |
| 1998 | 32.567 |
| 1997 | 32.621 |
| 1996 | 33.069 |
| 1995 | 34.61 |
| 1994 | 36.33 |
| 1993 | 37.827 |
| 1992 | 39.058 |
| 1991 | 40.071 |
| 1990 | 40.556 |
| 1989 | 39.336 |
| 1988 | 38.938 |
| 1987 | 38.718 |
| 1986 | 38.533 |
| 1985 | 38.459 |
| 1984 | 38.52 |
| 1983 | 38.549 |
| 1982 | 38.632 |
| 1981 | 39.734 |
| 1980 | 40.573 |
| 1979 | 41.009 |
| 1978 | 42.335 |
| 1977 | 42.939 |
| 1976 | 43.534 |
| 1975 | 43.901 |
| 1974 | 44.062 |
| 1973 | 44.069 |
| 1972 | 43.947 |
| 1971 | 43.854 |
| 1970 | 43.694 |
| 1969 | 43.638 |
| 1968 | 43.492 |
| 1967 | 43.285 |
| 1966 | 43.115 |
| 1965 | 42.955 |
| 1964 | 42.766 |
| 1963 | 42.601 |
| 1962 | 42.321 |
| 1961 | 41.995 |
| 1960 | 41.765 |