| 年份 | 尼日利亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | -1.09963 |
| 2020 | -0.115563 |
| 2019 | -5.58202 |
| 2018 | -2.01406 |
| 2017 | -0.0044748 |
| 2016 | -2.2863 |
| 2015 | -3.26235E-5 |
| 2014 | 5.98506 |
| 2013 | 5.05095 |
| 2012 | 18.5608 |
| 2011 | 9.95592 |
| 2010 | 8.00047 |
| 2009 | 1.20197 |
| 2008 | 10.5433 |
| 2007 | 3.13574 |
| 2006 | 16.4657 |
| 2005 | 9.00845 |
| 2004 | 8.61174 |
| 2003 | 4.1678 |
| 2002 | 6.44427 |
| 2001 | 6.82142 |
| 2000 | 23.0509 |
| 1999 | 8.21083 |
| 1998 | -2.99043 |
| 1997 | 5.8385 |
| 1996 | 5.79167 |
| 1995 | 8.78325 |
| 1994 | 4.03926 |
| 1993 | 6.41332 |
| 1992 | 9.72211 |
| 1991 | 11.4721 |
| 1990 | 11.0248 |
| 1989 | 16.3189 |
| 1988 | 5.39768 |
| 1987 | 6.19998 |
| 1986 | 1.36233 |
| 1985 | 3.80167 |
| 1984 | 3.32102 |
| 1983 | 1.02213 |
| 1982 | -0.39242 |
| 1981 | -0.991559 |
| 1980 | 10.179 |
| 1979 | 5.75387 |
| 1978 | -4.20964 |
| 1977 | 2.34956 |
| 1976 | -5.70647 |
| 1975 | -4.49284 |
| 1974 | 10.6101 |
| 1973 | 0.568089 |
| 1972 | -0.82739 |
| 1971 | -2.79507 |
| 1970 | -2.80645 |
| 1969 | -4.039 |
| 1968 | -5.80888 |
| 1967 | -6.33375 |
| 1966 | -4.20863 |
| 1965 | -5.12381 |
| 1964 | -6.21106 |
| 1963 | -4.75813 |
| 1962 | -5.29122 |
| 1961 | -7.11475 |
| 1960 | -7.68345 |