| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | 7.426 |
| 2021 | -2.3063 |
| 2020 | -0.237758 |
| 2019 | 2.02492 |
| 2018 | 3.22662 |
| 2017 | 1.0628 |
| 2016 | 1.72985 |
| 2015 | 0.471154 |
| 2014 | 2.68509 |
| 2013 | 1.36978 |
| 2012 | 6.41564 |
| 2011 | -1.40635 |
| 2010 | 4.60207 |
| 2009 | -1.74223 |
| 2008 | 3.8467 |
| 2007 | -0.545362 |
| 2006 | 2.17062 |
| 2005 | 3.54889 |
| 2004 | -3.13582 |
| 2003 | -1.34791 |
| 2002 | 1.33806 |
| 2001 | 3.62373 |
| 2000 | -4.53361 |
| 1999 | -3.56483 |
| 1998 | 6.31812 |
| 1997 | -1.80315 |
| 1996 | -3.21335 |
| 1995 | -0.889755 |
| 1994 | -1.36659 |
| 1993 | -2.79321 |
| 1992 | -1.1254 |
| 1991 | -3.48341 |
| 1990 | -4.30994 |
| 1989 | -2.0759 |
| 1988 | 3.67189 |
| 1987 | -2.90296 |
| 1986 | 3.18318 |
| 1985 | 4.51445 |
| 1984 | -19.2917 |
| 1983 | -6.73583 |
| 1982 | -0.910224 |
| 1981 | -3.20522 |
| 1980 | -5.39451 |
| 1979 | 3.98296 |
| 1978 | 10.2376 |
| 1977 | 4.78548 |
| 1976 | -2.05785 |
| 1975 | -5.39505 |
| 1974 | 5.90342 |
| 1973 | -19.2293 |
| 1972 | -7.65439 |
| 1971 | 2.87358 |
| 1970 | 0.259306 |
| 1969 | -8.0873 |
| 1968 | -2.42652 |
| 1967 | -2.71653 |
| 1966 | -3.22305 |
| 1965 | 3.84642 |
| 1964 | -2.77626 |
| 1963 | 6.23275 |
| 1962 | 7.05338 |
| 1961 | 1.49639 |
| 1960 | - |