For how many days did the old man go without fish?

I believe he actually went 87 days without catching fish.

"Santiago," the boy said to him as they climbed the bank from where the skiff was hauled up. "I could go with you again. We've made some money."

The old man had taught the boy to fish and the boy loved him.

"No," the old man said. "You're with a lucky boat. Stay with them."

"But remember how you went eighty-seven days without fish and then we caught big ones every day for three weeks."

"I remember," the old man said. "I know you did not leave me because you doubted."

"It was papa made me leave. I am a boy and I must obey him."

"I know," the old man said. "It is quite normal."

"He hasn't much faith."

"No," the old man said. "But we have. Haven't we?"