| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | 17.0607 |
| 2016 | - |
| 2015 | 13.725 |
| 2014 | 12.4236 |
| 2013 | - |
| 2012 | - |
| 2011 | 9.35062 |
| 2010 | 9.11368 |
| 2009 | 7.37037 |
| 2008 | 7.26373 |
| 2007 | 6.81181 |
| 2006 | - |
| 2005 | 6.7604 |
| 2004 | 5.75062 |
| 2003 | 4.73061 |
| 2002 | 4.21628 |
| 2001 | 4.06247 |
| 2000 | - |
| 1999 | 4.07858 |
| 1998 | - |
| 1997 | 3.9413 |
| 1996 | - |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | - |
| 1991 | 3.33299 |
| 1990 | 3.08281 |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | 1.99391 |
| 1980 | - |
| 1979 | 1.58848 |
| 1978 | 1.39112 |
| 1977 | 1.16387 |
| 1976 | 0.92946 |
| 1975 | - |
| 1974 | 0.73599 |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |