年份 | 尼日利亚 |
---|---|
2023 | - |
2022 | - |
2021 | 34.9 |
2020 | 35.5 |
2019 | 35.9 |
2018 | 36.4 |
2017 | 36.7 |
2016 | 37 |
2015 | 37.2 |
2014 | 37.4 |
2013 | 37.4 |
2012 | 37.6 |
2011 | 37.8 |
2010 | 38.1 |
2009 | 38.5 |
2008 | 38.9 |
2007 | 39.4 |
2006 | 40.1 |
2005 | 40.9 |
2004 | 41.9 |
2003 | 43 |
2002 | 44.2 |
2001 | 45.4 |
2000 | 46.4 |
1999 | 47.4 |
1998 | 48.2 |
1997 | 48.8 |
1996 | 49.3 |
1995 | 49.7 |
1994 | 49.9 |
1993 | 49.9 |
1992 | 49.9 |
1991 | 49.8 |
1990 | 49.8 |
1989 | 49.7 |
1988 | 49.6 |
1987 | 49.5 |
1986 | 49.6 |
1985 | 49.8 |
1984 | 50.2 |
1983 | 50.8 |
1982 | 51.5 |
1981 | 52.4 |
1980 | 53.4 |
1979 | 54.6 |
1978 | 55.8 |
1977 | 57 |
1976 | 58.3 |
1975 | 59.7 |
1974 | 61 |
1973 | 62.4 |
1972 | 63.7 |
1971 | 65.1 |
1970 | 66.4 |
1969 | 67.7 |
1968 | 68.8 |
1967 | 69.8 |
1966 | - |
1965 | - |
1964 | - |
1963 | - |
1962 | - |
1961 | - |
1960 | - |