| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | 105.126 |
| 2021 | 105.44 |
| 2020 | 105.694 |
| 2019 | 105.858 |
| 2018 | 105.958 |
| 2017 | 106.026 |
| 2016 | 106.112 |
| 2015 | 106.269 |
| 2014 | 106.453 |
| 2013 | 106.571 |
| 2012 | 106.624 |
| 2011 | 106.501 |
| 2010 | 106.083 |
| 2009 | 105.486 |
| 2008 | 104.751 |
| 2007 | 103.929 |
| 2006 | 103.05 |
| 2005 | 102.134 |
| 2004 | 101.181 |
| 2003 | 100.232 |
| 2002 | 99.3554 |
| 2001 | 98.5561 |
| 2000 | 97.8491 |
| 1999 | 97.2403 |
| 1998 | 96.7134 |
| 1997 | 96.2594 |
| 1996 | 95.9441 |
| 1995 | 95.8922 |
| 1994 | 96.0267 |
| 1993 | 96.201 |
| 1992 | 96.3725 |
| 1991 | 96.5437 |
| 1990 | 96.7251 |
| 1989 | 96.9273 |
| 1988 | 97.1136 |
| 1987 | 97.2108 |
| 1986 | 97.2512 |
| 1985 | 97.2066 |
| 1984 | 97.0172 |
| 1983 | 96.7885 |
| 1982 | 96.5832 |
| 1981 | 96.3913 |
| 1980 | 96.2653 |
| 1979 | 96.2858 |
| 1978 | 96.4733 |
| 1977 | 96.8176 |
| 1976 | 97.2907 |
| 1975 | 97.8373 |
| 1974 | 98.4215 |
| 1973 | 99.0124 |
| 1972 | 99.5951 |
| 1971 | 100.161 |
| 1970 | 100.696 |
| 1969 | 101.184 |
| 1968 | 101.619 |
| 1967 | 101.977 |
| 1966 | 102.252 |
| 1965 | 102.469 |
| 1964 | 101.843 |
| 1963 | 100.594 |
| 1962 | 99.9221 |
| 1961 | 99.7751 |
| 1960 | 99.8489 |