| 年份 | 尼日利亚 |
|---|---|
| 2023 | - |
| 2022 | 267.082 |
| 2021 | 239.941 |
| 2020 | 217.869 |
| 2019 | 202.013 |
| 2018 | 183.008 |
| 2017 | 166.026 |
| 2016 | 149.413 |
| 2015 | 136.396 |
| 2014 | 132.598 |
| 2013 | 126.691 |
| 2012 | 120.699 |
| 2011 | 109.778 |
| 2010 | 100 |
| 2009 | 85.9529 |
| 2008 | 85.3672 |
| 2007 | 79.1013 |
| 2006 | 73.8576 |
| 2005 | 59.6278 |
| 2004 | 49.7485 |
| 2003 | 40.6547 |
| 2002 | 37.0247 |
| 2001 | 30.5714 |
| 2000 | 27.7728 |
| 1999 | 22.6396 |
| 1998 | 19.959 |
| 1997 | 18.8276 |
| 1996 | 17.9216 |
| 1995 | 14.1683 |
| 1994 | 8.07761 |
| 1993 | 5.63699 |
| 1992 | 3.97983 |
| 1991 | 2.71193 |
| 1990 | 2.28155 |
| 1989 | 2.1389 |
| 1988 | 1.65845 |
| 1987 | 1.38001 |
| 1986 | 1.15318 |
| 1985 | 1.09394 |
| 1984 | 1.02307 |
| 1983 | 0.96832 |
| 1982 | 0.809842 |
| 1981 | 0.705422 |
| 1980 | 0.221133 |
| 1979 | 0.196704 |
| 1978 | 0.176434 |
| 1977 | 0.154882 |
| 1976 | 0.139894 |
| 1975 | 0.122335 |
| 1974 | 0.0990562 |
| 1973 | 0.0688146 |
| 1972 | 0.065322 |
| 1971 | 0.0634854 |
| 1970 | 0.062641 |
| 1969 | 0.0414077 |
| 1968 | 0.0403167 |
| 1967 | 0.0398305 |
| 1966 | 0.0410652 |
| 1965 | 0.036279 |
| 1964 | 0.0359681 |
| 1963 | 0.0351155 |
| 1962 | 0.036237 |
| 1961 | 0.0343266 |
| 1960 | 0.0323052 |