| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 61.7612 |
| 2020 | 65.5135 |
| 2019 | 61.7774 |
| 2018 | 62.013 |
| 2017 | 68.6702 |
| 2016 | 66.8755 |
| 2015 | 64.9036 |
| 2014 | 62.9884 |
| 2013 | 61.9868 |
| 2012 | 61.0394 |
| 2011 | 58.7484 |
| 2010 | 54.9455 |
| 2009 | 50.8349 |
| 2008 | 46.923 |
| 2007 | 42.4124 |
| 2006 | 40.0101 |
| 2005 | 39.3001 |
| 2004 | 37.4548 |
| 2003 | 34.1023 |
| 2002 | 31.3067 |
| 2001 | 27.9907 |
| 2000 | 25.517 |
| 1999 | 24.0685 |
| 1998 | 22.3389 |
| 1997 | 21.8648 |
| 1996 | 20.9861 |
| 1995 | 20.8613 |
| 1994 | 19.62 |
| 1993 | 19.5573 |
| 1992 | 19.1756 |
| 1991 | 19.4508 |
| 1990 | 18.7975 |
| 1989 | 18.2516 |
| 1988 | 17.2825 |
| 1987 | 17.6758 |
| 1986 | 17.2891 |
| 1985 | 16.2367 |
| 1984 | 16.5276 |
| 1983 | 16.8384 |
| 1982 | 16.6289 |
| 1981 | 16.3074 |
| 1980 | 15.4081 |
| 1979 | 14.5824 |
| 1978 | 13.4363 |
| 1977 | 12.4227 |
| 1976 | 11.2718 |
| 1975 | 9.91069 |
| 1974 | 9.25375 |
| 1973 | 8.50824 |
| 1972 | 8.10015 |
| 1971 | 7.76422 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |