| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 56.3799 |
| 2020 | 56.6893 |
| 2019 | 60.9236 |
| 2018 | 60.6126 |
| 2017 | 59.9351 |
| 2016 | 59.0965 |
| 2015 | 58.1455 |
| 2014 | 58.3212 |
| 2013 | 57.5974 |
| 2012 | 56.9782 |
| 2011 | 55.8594 |
| 2010 | 55.1312 |
| 2009 | 53.8361 |
| 2008 | 52.6355 |
| 2007 | 51.4031 |
| 2006 | 50.2858 |
| 2005 | 49.1003 |
| 2004 | 47.8912 |
| 2003 | 46.7791 |
| 2002 | 45.4545 |
| 2001 | 44.7034 |
| 2000 | 44.3012 |
| 1999 | 43.6631 |
| 1998 | 43.084 |
| 1997 | 42.5381 |
| 1996 | 41.664 |
| 1995 | 40.7496 |
| 1994 | 39.2608 |
| 1993 | 38.3816 |
| 1992 | 37.4072 |
| 1991 | 36.6649 |
| 1990 | 36.4683 |
| 1989 | 35.7409 |
| 1988 | 35.2617 |
| 1987 | 34.6319 |
| 1986 | 34.153 |
| 1985 | 33.7191 |
| 1984 | 33.4631 |
| 1983 | 33.549 |
| 1982 | 33.0118 |
| 1981 | 32.4295 |
| 1980 | 31.183 |
| 1979 | 29.941 |
| 1978 | 28.6526 |
| 1977 | 27.1463 |
| 1976 | 26.0673 |
| 1975 | 25.1683 |
| 1974 | 24.5919 |
| 1973 | 24.1804 |
| 1972 | 24.1989 |
| 1971 | 23.4177 |
| 1970 | 24.4313 |
| 1969 | 24.6323 |
| 1968 | 24.8895 |
| 1967 | 25.1226 |
| 1966 | 25.0366 |
| 1965 | 24.9977 |
| 1964 | 24.968 |
| 1963 | 24.9085 |
| 1962 | 24.8608 |
| 1961 | 24.6861 |
| 1960 | 24.5763 |