| 年份 | 尼日利亚 |
|---|---|
| 2023 | - |
| 2022 | 2162.63 |
| 2021 | 2065.77 |
| 2020 | 2074.61 |
| 2019 | 2334.02 |
| 2018 | 2125.83 |
| 2017 | 1941.88 |
| 2016 | 2144.78 |
| 2015 | 2679.55 |
| 2014 | 3200.95 |
| 2013 | 2976.76 |
| 2012 | 2728.02 |
| 2011 | 2504.88 |
| 2010 | 2280.11 |
| 2009 | 1883.89 |
| 2008 | 2227.79 |
| 2007 | 1876.41 |
| 2006 | 1652.15 |
| 2005 | 1250.41 |
| 2004 | 992.745 |
| 2003 | 786.802 |
| 2002 | 733.538 |
| 2001 | 583.086 |
| 2000 | 563.047 |
| 1999 | 494.129 |
| 1998 | 1871.76 |
| 1997 | 1765.08 |
| 1996 | 1673.91 |
| 1995 | 1302.55 |
| 1994 | 762.399 |
| 1993 | 551.893 |
| 1992 | 519.636 |
| 1991 | 609.373 |
| 1990 | 567.518 |
| 1989 | 474.457 |
| 1988 | 549.504 |
| 1987 | 598.291 |
| 1986 | 638.732 |
| 1985 | 882.283 |
| 1984 | 903.449 |
| 1983 | 1223.6 |
| 1982 | 1844.85 |
| 1981 | 2187.89 |
| 1980 | 880.062 |
| 1979 | 667.982 |
| 1978 | 532.217 |
| 1977 | 541.156 |
| 1976 | 561.55 |
| 1975 | 441.979 |
| 1974 | 406.27 |
| 1973 | 254.387 |
| 1972 | 210.995 |
| 1971 | 161.544 |
| 1970 | 225.774 |
| 1969 | 122.042 |
| 1968 | 97.7445 |
| 1967 | 99.8574 |
| 1966 | 124.792 |
| 1965 | 117.665 |
| 1964 | 113.658 |
| 1963 | 108.016 |
| 1962 | 104.853 |
| 1961 | 97.421 |
| 1960 | 93.397 |