How long has Ikemefuna been with the family?

Ikemefuna has been with Okonkwo's family for three years. He was taken in by Okonkwo as part of a peace settlement between villages after his village lost a conflict. During this time, he becomes a beloved member of the family, particularly bonding with Okonkwo's son, Nwoye. His presence significantly impacts the family's dynamics and Okonkwo's relationship with his sons.