| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | 119.9亿 |
| 2021 | 113.71亿 |
| 2020 | 110.1亿 |
| 2019 | 104.58亿 |
| 2018 | 99.75亿 |
| 2017 | 93.86亿 |
| 2016 | 87.32亿 |
| 2015 | 81.18亿 |
| 2014 | 77.36亿 |
| 2013 | 72.97亿 |
| 2012 | 69.71亿 |
| 2011 | 65.24亿 |
| 2010 | 62.49亿 |
| 2009 | 60.14亿 |
| 2008 | 56.17亿 |
| 2007 | 54.8亿 |
| 2006 | 52.73亿 |
| 2005 | 50.58亿 |
| 2004 | 49.65亿 |
| 2003 | 48.99亿 |
| 2002 | 47.31亿 |
| 2001 | 45.21亿 |
| 2000 | 42.65亿 |
| 1999 | 43.36亿 |
| 1998 | 42.09亿 |
| 1997 | 40.16亿 |
| 1996 | 38.59亿 |
| 1995 | 40.7亿 |
| 1994 | 38.54亿 |
| 1993 | 38.56亿 |
| 1992 | 36.07亿 |
| 1991 | 37.5亿 |
| 1990 | 36.6亿 |
| 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 | - |