okonkwo killed alot of people?

I din't think there is a total number ever added up of people he killed in his lifetime. He does say he has killed 5 people in battle. At one point Okonkwo chastises himself for being weak, "you, who are known in all the nine villages for your valor in war? How can a man who has killed five men in battle fall to pieces because he has added a boy to their number? Okonkwo, you have become a woman indeed.'"