| 年份 | 尼日利亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 52.676 |
| 2020 | 52.887 |
| 2019 | 52.91 |
| 2018 | 52.554 |
| 2017 | 52.305 |
| 2016 | 52.043 |
| 2015 | 51.841 |
| 2014 | 51.791 |
| 2013 | 51.707 |
| 2012 | 51.497 |
| 2011 | 51.357 |
| 2010 | 50.945 |
| 2009 | 50.712 |
| 2008 | 50.225 |
| 2007 | 50.033 |
| 2006 | 49.73 |
| 2005 | 49.297 |
| 2004 | 48.767 |
| 2003 | 48.441 |
| 2002 | 47.928 |
| 2001 | 47.619 |
| 2000 | 47.193 |
| 1999 | 46.614 |
| 1998 | 46.036 |
| 1997 | 45.792 |
| 1996 | 45.567 |
| 1995 | 45.487 |
| 1994 | 45.513 |
| 1993 | 45.788 |
| 1992 | 45.668 |
| 1991 | 45.691 |
| 1990 | 46.037 |
| 1989 | 46.182 |
| 1988 | 46.072 |
| 1987 | 46.018 |
| 1986 | 45.975 |
| 1985 | 46.317 |
| 1984 | 46.55 |
| 1983 | 46.638 |
| 1982 | 46.513 |
| 1981 | 46.493 |
| 1980 | 46.349 |
| 1979 | 46.215 |
| 1978 | 46.019 |
| 1977 | 45.558 |
| 1976 | 44.721 |
| 1975 | 43.662 |
| 1974 | 42.791 |
| 1973 | 42.011 |
| 1972 | 41.273 |
| 1971 | 40.48 |
| 1970 | 39.713 |
| 1969 | 38.718 |
| 1968 | 38.482 |
| 1967 | 37.573 |
| 1966 | 38.797 |
| 1965 | 38.68 |
| 1964 | 38.415 |
| 1963 | 38.192 |
| 1962 | 37.809 |
| 1961 | 37.673 |
| 1960 | 37.371 |