年份 | 尼日利亚 |
---|---|
2023 | - |
2022 | 2.38001 |
2021 | 2.40636 |
2020 | 2.44061 |
2019 | 2.4482 |
2018 | 2.49664 |
2017 | 2.52732 |
2016 | 2.50703 |
2015 | 2.54119 |
2014 | 2.62812 |
2013 | 2.69747 |
2012 | 2.74929 |
2011 | 2.76406 |
2010 | 2.74438 |
2009 | 2.72738 |
2008 | 2.71969 |
2007 | 2.70963 |
2006 | 2.69593 |
2005 | 2.69369 |
2004 | 2.6955 |
2003 | 2.69277 |
2002 | 2.68289 |
2001 | 2.65127 |
2000 | 2.60287 |
1999 | 2.54262 |
1998 | 2.51603 |
1997 | 2.52296 |
1996 | 2.52685 |
1995 | 2.55719 |
1994 | 2.57483 |
1993 | 2.55577 |
1992 | 2.52373 |
1991 | 2.5622 |
1990 | 2.6286 |
1989 | 2.61364 |
1988 | 2.58684 |
1987 | 2.5771 |
1986 | 2.62007 |
1985 | 2.72593 |
1984 | 2.47194 |
1983 | 2.50558 |
1982 | 2.90087 |
1981 | 3.00299 |
1980 | 3.06371 |
1979 | 3.03784 |
1978 | 3.02292 |
1977 | 2.94325 |
1976 | 2.83449 |
1975 | 2.73123 |
1974 | 2.57126 |
1973 | 2.43113 |
1972 | 2.32373 |
1971 | 2.25681 |
1970 | 2.19879 |
1969 | 2.13938 |
1968 | 2.09554 |
1967 | 2.10697 |
1966 | 2.16856 |
1965 | 2.16539 |
1964 | 2.13863 |
1963 | 2.11478 |
1962 | 2.08546 |
1961 | 2.04265 |
1960 | - |