| 年份 | 纳米比亚 |
|---|---|
| 2023 | - |
| 2022 | 0.707239 |
| 2021 | 1.50652 |
| 2020 | 0.349106 |
| 2019 | 1.45401 |
| 2018 | -0.245433 |
| 2017 | -2.08391 |
| 2016 | 1.07441 |
| 2015 | 12.1129 |
| 2014 | 4.38049 |
| 2013 | 4.81606 |
| 2012 | 3.26479 |
| 2011 | 6.67235 |
| 2010 | 1.0065 |
| 2009 | 3.84101 |
| 2008 | 10.2364 |
| 2007 | 12.5713 |
| 2006 | 10.9817 |
| 2005 | -5.91914 |
| 2004 | 4.96875 |
| 2003 | 3.13651 |
| 2002 | -2.57553 |
| 2001 | 2.90756 |
| 2000 | 1.26982 |
| 1999 | 4.47357 |
| 1998 | 3.0761 |
| 1997 | 4.03615 |
| 1996 | 2.59375 |
| 1995 | 2.69592 |
| 1994 | 1.57531 |
| 1993 | 0.698522 |
| 1992 | 6.69918 |
| 1991 | 11.781 |
| 1990 | 5.99998 |
| 1989 | -2.32697 |
| 1988 | 3.78003 |
| 1987 | 0.238132 |
| 1986 | 2.06879 |
| 1985 | 9.45047 |
| 1984 | 1.90331 |
| 1983 | 1.24674 |
| 1982 | 3.09262 |
| 1981 | 25.2795 |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |