| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | 2.11635 |
| 2021 | -0.876223 |
| 2020 | 1.41899 |
| 2019 | 0.294406 |
| 2018 | 2.60644 |
| 2017 | 4.21887 |
| 2016 | 5.44936 |
| 2015 | 2.86086 |
| 2014 | -1.75506 |
| 2013 | 0.659593 |
| 2012 | 3.44122 |
| 2011 | 0.182009 |
| 2010 | 2.61248 |
| 2009 | 2.41119 |
| 2008 | -3.57346 |
| 2007 | 0.252086 |
| 2006 | 0.27195 |
| 2005 | -2.31483 |
| 2004 | -0.00882541 |
| 2003 | 0.24943 |
| 2002 | 1.43984 |
| 2001 | 3.25747 |
| 2000 | -4.61845 |
| 1999 | -0.292536 |
| 1998 | -0.477761 |
| 1997 | -0.552359 |
| 1996 | -6.17264 |
| 1995 | 2.11368 |
| 1994 | -1.2113 |
| 1993 | 3.89701 |
| 1992 | -8.31864 |
| 1991 | 0.269715 |
| 1990 | - |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |