| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 36.7846 |
| 2020 | 36.7846 |
| 2019 | 36.7846 |
| 2018 | 36.7846 |
| 2017 | 36.7846 |
| 2016 | 36.6267 |
| 2015 | 36.0741 |
| 2014 | 36.0638 |
| 2013 | 36.0638 |
| 2012 | 35.3533 |
| 2011 | 35.1164 |
| 2010 | 34.7217 |
| 2009 | 34.5638 |
| 2008 | 34.5638 |
| 2007 | 34.5638 |
| 2006 | 33.9378 |
| 2005 | 33.9188 |
| 2004 | 30.3718 |
| 2003 | 30.3245 |
| 2002 | 29.9992 |
| 2001 | 29.9992 |
| 2000 | 29.2098 |
| 1999 | 29.2098 |
| 1998 | 28.4203 |
| 1997 | 28.4203 |
| 1996 | 28.4203 |
| 1995 | 28.4203 |
| 1994 | 27.6309 |
| 1993 | 27.6309 |
| 1992 | 27.6309 |
| 1991 | 26.9243 |
| 1990 | 26.0891 |
| 1989 | 24.7928 |
| 1988 | 24.7099 |
| 1987 | 24.4825 |
| 1986 | 24.6941 |
| 1985 | 24.2994 |
| 1984 | 24.2994 |
| 1983 | 24.4809 |
| 1982 | 23.9678 |
| 1981 | 23.9046 |
| 1980 | 24.252 |
| 1979 | 23.6504 |
| 1978 | 23.5099 |
| 1977 | 23.5099 |
| 1976 | 23.5099 |
| 1975 | 23.5099 |
| 1974 | 23.5099 |
| 1973 | 24.3262 |
| 1972 | 24.6128 |
| 1971 | 24.6546 |
| 1970 | 24.6309 |
| 1969 | 25.4014 |
| 1968 | 25.4022 |
| 1967 | 24.8678 |
| 1966 | 24.8678 |
| 1965 | 24.8678 |
| 1964 | 24.8678 |
| 1963 | 24.8678 |
| 1962 | 24.8678 |
| 1961 | 24.8678 |
| 1960 | - |