年份 | 尼日利亚 |
---|---|
2023 | - |
2022 | - |
2021 | 13.083 |
2020 | 12.997 |
2019 | 12.989 |
2018 | 13.239 |
2017 | 13.435 |
2016 | 13.638 |
2015 | 13.803 |
2014 | 13.892 |
2013 | 14.004 |
2012 | 14.193 |
2011 | 14.336 |
2010 | 14.628 |
2009 | 14.82 |
2008 | 15.161 |
2007 | 15.322 |
2006 | 15.561 |
2005 | 15.883 |
2004 | 16.271 |
2003 | 16.541 |
2002 | 16.919 |
2001 | 17.158 |
2000 | 17.464 |
1999 | 17.865 |
1998 | 18.289 |
1997 | 18.531 |
1996 | 18.757 |
1995 | 18.859 |
1994 | 18.87 |
1993 | 18.702 |
1992 | 18.805 |
1991 | 18.819 |
1990 | 18.631 |
1989 | 18.58 |
1988 | 18.694 |
1987 | 18.807 |
1986 | 18.928 |
1985 | 18.795 |
1984 | 18.739 |
1983 | 18.759 |
1982 | 18.896 |
1981 | 18.982 |
1980 | 19.17 |
1979 | 19.343 |
1978 | 19.539 |
1977 | 19.886 |
1976 | 20.49 |
1975 | 21.269 |
1974 | 21.906 |
1973 | 22.485 |
1972 | 23.071 |
1971 | 23.708 |
1970 | 24.347 |
1969 | 25.152 |
1968 | 25.356 |
1967 | 26.201 |
1966 | 25.111 |
1965 | 25.207 |
1964 | 25.42 |
1963 | 25.594 |
1962 | 25.92 |
1961 | 25.999 |
1960 | 26.235 |