| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | 7.94215 |
| 2016 | 8.25326 |
| 2015 | 8.58205 |
| 2014 | 8.53563 |
| 2013 | 7.094 |
| 2012 | 6.24193 |
| 2011 | 5.56369 |
| 2010 | 6.65615 |
| 2009 | 7.63041 |
| 2008 | 9.44305 |
| 2007 | 11.8519 |
| 2006 | 9.95969 |
| 2005 | 8.61492 |
| 2004 | 5.43472 |
| 2003 | 6.48497 |
| 2002 | 8.18767 |
| 2001 | 9.65318 |
| 2000 | 14.4758 |
| 1999 | 10.5602 |
| 1998 | 11.8693 |
| 1997 | 11.8991 |
| 1996 | - |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | 17.6036 |
| 1991 | 11.4307 |
| 1990 | 10.1384 |
| 1989 | 8.78542 |
| 1988 | - |
| 1987 | - |
| 1986 | 1.701 |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | 11.1753 |
| 1973 | 9.82515 |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |