| 年份 | 尼日利亚 |
|---|---|
| 2023 | - |
| 2022 | 53.521 |
| 2021 | 52.746 |
| 2020 | 51.958 |
| 2019 | 51.157 |
| 2018 | 50.344 |
| 2017 | 49.519 |
| 2016 | 48.683 |
| 2015 | 47.838 |
| 2014 | 46.982 |
| 2013 | 46.118 |
| 2012 | 45.246 |
| 2011 | 44.366 |
| 2010 | 43.48 |
| 2009 | 42.588 |
| 2008 | 41.702 |
| 2007 | 40.819 |
| 2006 | 39.943 |
| 2005 | 39.074 |
| 2004 | 38.212 |
| 2003 | 37.356 |
| 2002 | 36.508 |
| 2001 | 35.669 |
| 2000 | 34.84 |
| 1999 | 34.304 |
| 1998 | 33.773 |
| 1997 | 33.247 |
| 1996 | 32.725 |
| 1995 | 32.205 |
| 1994 | 31.691 |
| 1993 | 31.182 |
| 1992 | 30.677 |
| 1991 | 30.176 |
| 1990 | 29.68 |
| 1989 | 28.842 |
| 1988 | 28.019 |
| 1987 | 27.209 |
| 1986 | 26.414 |
| 1985 | 25.635 |
| 1984 | 24.872 |
| 1983 | 24.122 |
| 1982 | 23.389 |
| 1981 | 22.671 |
| 1980 | 21.97 |
| 1979 | 21.518 |
| 1978 | 21.074 |
| 1977 | 20.636 |
| 1976 | 20.205 |
| 1975 | 19.78 |
| 1974 | 19.363 |
| 1973 | 18.952 |
| 1972 | 18.549 |
| 1971 | 18.151 |
| 1970 | 17.76 |
| 1969 | 17.513 |
| 1968 | 17.269 |
| 1967 | 17.027 |
| 1966 | 16.788 |
| 1965 | 16.551 |
| 1964 | 16.318 |
| 1963 | 16.087 |
| 1962 | 15.858 |
| 1961 | 15.633 |
| 1960 | 15.41 |