| 年份 | 尼日利亚 |
|---|---|
| 2023 | - |
| 2022 | 46.479 |
| 2021 | 47.254 |
| 2020 | 48.042 |
| 2019 | 48.843 |
| 2018 | 49.656 |
| 2017 | 50.481 |
| 2016 | 51.317 |
| 2015 | 52.162 |
| 2014 | 53.018 |
| 2013 | 53.882 |
| 2012 | 54.754 |
| 2011 | 55.634 |
| 2010 | 56.52 |
| 2009 | 57.412 |
| 2008 | 58.298 |
| 2007 | 59.181 |
| 2006 | 60.057 |
| 2005 | 60.926 |
| 2004 | 61.788 |
| 2003 | 62.644 |
| 2002 | 63.492 |
| 2001 | 64.331 |
| 2000 | 65.16 |
| 1999 | 65.696 |
| 1998 | 66.227 |
| 1997 | 66.753 |
| 1996 | 67.275 |
| 1995 | 67.795 |
| 1994 | 68.309 |
| 1993 | 68.818 |
| 1992 | 69.323 |
| 1991 | 69.824 |
| 1990 | 70.32 |
| 1989 | 71.158 |
| 1988 | 71.981 |
| 1987 | 72.791 |
| 1986 | 73.586 |
| 1985 | 74.365 |
| 1984 | 75.128 |
| 1983 | 75.878 |
| 1982 | 76.611 |
| 1981 | 77.329 |
| 1980 | 78.03 |
| 1979 | 78.482 |
| 1978 | 78.926 |
| 1977 | 79.364 |
| 1976 | 79.795 |
| 1975 | 80.22 |
| 1974 | 80.637 |
| 1973 | 81.048 |
| 1972 | 81.451 |
| 1971 | 81.849 |
| 1970 | 82.24 |
| 1969 | 82.487 |
| 1968 | 82.731 |
| 1967 | 82.973 |
| 1966 | 83.212 |
| 1965 | 83.449 |
| 1964 | 83.682 |
| 1963 | 83.913 |
| 1962 | 84.142 |
| 1961 | 84.367 |
| 1960 | 84.59 |