| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | 35.2962 |
| 2021 | 37.0159 |
| 2020 | 35.513 |
| 2019 | 37.1026 |
| 2018 | 37.5388 |
| 2017 | 39.0711 |
| 2016 | 36.4881 |
| 2015 | 44.7274 |
| 2014 | 45.7416 |
| 2013 | 46.2952 |
| 2012 | 45.086 |
| 2011 | 50.2464 |
| 2010 | 51.946 |
| 2009 | 49.5123 |
| 2008 | 39.7112 |
| 2007 | 35.5028 |
| 2006 | 36.5314 |
| 2005 | 38.3477 |
| 2004 | 36.9641 |
| 2003 | 33.3828 |
| 2002 | 30.8344 |
| 2001 | 33.0137 |
| 2000 | 34.7128 |
| 1999 | 31.3752 |
| 1998 | 35.0197 |
| 1997 | 33.1743 |
| 1996 | 36.54 |
| 1995 | 34.7775 |
| 1994 | 33.6425 |
| 1993 | 26.0989 |
| 1992 | 28.7066 |
| 1991 | 30.3362 |
| 1990 | 35.6168 |
| 1989 | 39.898 |
| 1988 | 41.8884 |
| 1987 | 45.9845 |
| 1986 | 40.6923 |
| 1985 | 53.5266 |
| 1984 | 49.8757 |
| 1983 | 47.7393 |
| 1982 | 57.0681 |
| 1981 | 60.3573 |
| 1980 | 62.7103 |
| 1979 | 65.4123 |
| 1978 | 50.3593 |
| 1977 | 48.9721 |
| 1976 | 56.6015 |
| 1975 | 50.2402 |
| 1974 | 41.2435 |
| 1973 | 39.2498 |
| 1972 | 34.7083 |
| 1971 | 27.9689 |
| 1970 | 28.8731 |
| 1969 | 25.8307 |
| 1968 | 22.2903 |
| 1967 | 22.8044 |
| 1966 | 28.5385 |
| 1965 | 23.5004 |
| 1964 | 23.3653 |
| 1963 | 19.6334 |
| 1962 | 22.2314 |
| 1961 | 17.8266 |
| 1960 | 14.5058 |