The Registrar of NECO, Prof. Promise Okpalla, who announced this in Minna, said that out of 51,759 who sat for the examination 31, 201 candidates scored credits in Mathematics.
According to reports monitored by the News Agency of Nigeria (NAN), Okpalla said 28,113 candidates, representing 48.7 per cent of the candidates scored credit in English Language.
He said that Zamfara recorded the highest cases of malpractice in the examination, with 6.14 per cent and was followed by Imo with 5.28 per cent.
The registrar said that there had been improvement in NECO results in the last three years.
He attributed it to its collaboration with stakeholders and security agents, especially the Nigeria Security and Civil Defence Corps.
Okpalla said that the council fared well in the conduct of the examination in spite of challenges it faced, and called for sustained cooperation from the public and stakeholders.
He said Zamfara and Imo topped the list of states with the high cases of malpractice, the Federal Capital Territory and Bayelsa recorded zero per cent in cases examination malpractice.
He stressed that the council had maintained zero-tolerance for examination malpractice â€œthrough the adoption of effective quality control measures.â€
In his contribution, Chairman of NECO Board, Dr Paddy Njoku, commended the council for the painstaking manner it was conducting its activities.
Njoku urged every stakeholder in the education sector not to rest on his oars until cases of examination malpractice in the country were reduced.