| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | 17.6115 |
| 2016 | 17.4229 |
| 2015 | 32.1696 |
| 2014 | 29.1201 |
| 2013 | 25.0904 |
| 2012 | 23.8297 |
| 2011 | 24.2778 |
| 2010 | 21.28 |
| 2009 | 20.9263 |
| 2008 | 21.2467 |
| 2007 | 19.4383 |
| 2006 | 21.5495 |
| 2005 | - |
| 2004 | - |
| 2003 | - |
| 2002 | - |
| 2001 | - |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | 32.3189 |
| 1995 | 31.6253 |
| 1994 | 33.0817 |
| 1993 | 31.6229 |
| 1992 | 30.4069 |
| 1991 | 33.1448 |
| 1990 | 31.4765 |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | 26.1878 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |