| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | 7.75514 |
| 2016 | 7.91031 |
| 2015 | 8.1049 |
| 2014 | 7.97534 |
| 2013 | 6.57832 |
| 2012 | 5.73254 |
| 2011 | 5.09347 |
| 2010 | 6.02902 |
| 2009 | 6.69806 |
| 2008 | 8.28358 |
| 2007 | 10.65 |
| 2006 | 8.95279 |
| 2005 | 7.93311 |
| 2004 | 5.15746 |
| 2003 | 5.93762 |
| 2002 | 7.66048 |
| 2001 | 8.9022 |
| 2000 | 13.3512 |
| 1999 | 9.56595 |
| 1998 | 10.8742 |
| 1997 | 11.2303 |
| 1996 | - |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | 17.3188 |
| 1991 | 11.4017 |
| 1990 | 10.3821 |
| 1989 | 9.31976 |
| 1988 | - |
| 1987 | - |
| 1986 | 7.05354 |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | 10.2234 |
| 1973 | 9.34325 |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |