| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | 22.3986 |
| 2017 | 21.6019 |
| 2016 | 20.0715 |
| 2015 | 20.1399 |
| 2014 | 20.0205 |
| 2013 | 20.1268 |
| 2012 | - |
| 2011 | 19.3457 |
| 2010 | 18.3006 |
| 2009 | - |
| 2008 | - |
| 2007 | - |
| 2006 | 16.3631 |
| 2005 | 16.6893 |
| 2004 | 18.6124 |
| 2003 | 19.1103 |
| 2002 | 18.7755 |
| 2001 | 16.8446 |
| 2000 | 18.0516 |
| 1999 | 18.0339 |
| 1998 | 19.2764 |
| 1997 | 20.5644 |
| 1996 | 20.7441 |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | 17.9682 |
| 1991 | 17.6577 |
| 1990 | 17.2844 |
| 1989 | 18.2972 |
| 1988 | 12.7764 |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | 20.7944 |
| 1980 | 19.3844 |
| 1979 | 19.4589 |
| 1978 | 21.2691 |
| 1977 | 20.0762 |
| 1976 | 22.9199 |
| 1975 | 19.1126 |
| 1974 | 25.4174 |
| 1973 | 27.6423 |
| 1972 | 24.2188 |
| 1971 | 21.6763 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |