| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | 7.76十万 |
| 2017 | 7.3十万 |
| 2016 | 6.63十万 |
| 2015 | 5.47十万 |
| 2014 | 4.73十万 |
| 2013 | 4.12十万 |
| 2012 | 3.66十万 |
| 2011 | 3.36十万 |
| 2010 | 3.01十万 |
| 2009 | 2.5十万 |
| 2008 | 2.28十万 |
| 2007 | 2.11十万 |
| 2006 | 2.11十万 |
| 2005 | 1.77十万 |
| 2004 | 1.55十万 |
| 2003 | 1.24十万 |
| 2002 | 1.09十万 |
| 2001 | 1.02十万 |
| 2000 | 9.98万 |
| 1999 | 9.84万 |
| 1998 | 9.67万 |
| 1997 | 9.55万 |
| 1996 | 9.05万 |
| 1995 | 8.7万 |
| 1994 | - |
| 1993 | 7.79万 |
| 1992 | 7.49万 |
| 1991 | 7.43万 |
| 1990 | 6.64万 |
| 1989 | 6.34万 |
| 1988 | 5.66万 |
| 1987 | - |
| 1986 | 5.14万 |
| 1985 | - |
| 1984 | 4.47万 |
| 1983 | 4.22万 |
| 1982 | 4.3万 |
| 1981 | 3.65万 |
| 1980 | 3.06万 |
| 1979 | 2.56万 |
| 1978 | 2.07万 |
| 1977 | 1.71万 |
| 1976 | 1.36万 |
| 1975 | 1.16万 |
| 1974 | 1.05万 |
| 1973 | 8689 |
| 1972 | 7416 |
| 1971 | 6337 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |