How many affidavits for green card?

Excuse me, could you clarify the exact context or purpose for which you're inquiring about the number of affidavits needed for a green card? Are you referring to the sponsorship process by a family member or employer, or perhaps a different aspect of the immigration process? The specific number of affidavits can vary depending on the specific requirements and circumstances of each case. Could you provide some more details so I can give you a more accurate answer?