Of the 22,388 candidates that sat for the examination, 18,698 got five credits and above in five subjects including English and Mathematics.
Edo and Lagos states came second and third respectively while Yobe states candidates performed the least in the examination which took place nationwide between May and June this year.
The Registrar and Chief Executive Officer of NECO Professor Abdulrasheed Garba who released the results, the first since he assumed office just over three months ago said a total of 664,747 candidates out of the 969,491 that sat for the examination had five credits and above including English and Mathematics as against 511,931 out of 978,886 which scored the same marks last year.
The two subjects are major criteria for entry into tertiary institutions in Nigeria.
The Registrar said 43,608 cases of malpractices were recorded with those who had their cases established having their results cancelled.
Prof. Garba said further that schools with defaults had their results withheld until the Council takes its final decisions.