| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | 266.41亿 |
| 2021 | 250.45亿 |
| 2020 | 234.93亿 |
| 2019 | 220.11亿 |
| 2018 | 202.89亿 |
| 2017 | 189.4亿 |
| 2016 | 176.14亿 |
| 2015 | 159.73亿 |
| 2014 | 146.59亿 |
| 2013 | 143.26亿 |
| 2012 | 145.41亿 |
| 2011 | 128.59亿 |
| 2010 | 120.22亿 |
| 2009 | 108.03亿 |
| 2008 | 98.45亿 |
| 2007 | 93.38亿 |
| 2006 | 80.97亿 |
| 2005 | 73.32亿 |
| 2004 | 69.28亿 |
| 2003 | 65.38亿 |
| 2002 | 61.06亿 |
| 2001 | 56.88亿 |
| 2000 | 50.39亿 |
| 1999 | 49.69亿 |
| 1998 | 47.19亿 |
| 1997 | 41.31亿 |
| 1996 | 38.01亿 |
| 1995 | 37.8亿 |
| 1994 | 38.27亿 |
| 1993 | 41.56亿 |
| 1992 | 41.62亿 |
| 1991 | 38.76亿 |
| 1990 | 34.75亿 |
| 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 | - |