| 年份 | 尼日尔 |
|---|---|
| 2023 | - |
| 2022 | 49.2773 |
| 2021 | 49.2762 |
| 2020 | 49.2786 |
| 2019 | 49.2831 |
| 2018 | 49.2896 |
| 2017 | 49.2969 |
| 2016 | 49.3032 |
| 2015 | 49.3092 |
| 2014 | 49.3177 |
| 2013 | 49.3299 |
| 2012 | 49.3442 |
| 2011 | 49.3598 |
| 2010 | 49.376 |
| 2009 | 49.3939 |
| 2008 | 49.4125 |
| 2007 | 49.4314 |
| 2006 | 49.4518 |
| 2005 | 49.4746 |
| 2004 | 49.4999 |
| 2003 | 49.5307 |
| 2002 | 49.5648 |
| 2001 | 49.5986 |
| 2000 | 49.6328 |
| 1999 | 49.6669 |
| 1998 | 49.7009 |
| 1997 | 49.7369 |
| 1996 | 49.7756 |
| 1995 | 49.8154 |
| 1994 | 49.8537 |
| 1993 | 49.8915 |
| 1992 | 49.9331 |
| 1991 | 49.9793 |
| 1990 | 50.031 |
| 1989 | 50.0881 |
| 1988 | 50.1494 |
| 1987 | 50.2135 |
| 1986 | 50.2818 |
| 1985 | 50.3545 |
| 1984 | 50.4301 |
| 1983 | 50.5072 |
| 1982 | 50.5849 |
| 1981 | 50.6643 |
| 1980 | 50.7438 |
| 1979 | 50.8196 |
| 1978 | 50.8929 |
| 1977 | 50.9646 |
| 1976 | 51.0346 |
| 1975 | 51.1022 |
| 1974 | 51.1731 |
| 1973 | 51.2536 |
| 1972 | 51.3429 |
| 1971 | 51.4391 |
| 1970 | 51.5378 |
| 1969 | 51.6384 |
| 1968 | 51.7422 |
| 1967 | 51.8517 |
| 1966 | 51.9665 |
| 1965 | 52.0861 |
| 1964 | 52.2112 |
| 1963 | 52.3412 |
| 1962 | 52.4773 |
| 1961 | 52.6189 |
| 1960 | 52.7662 |