Question: During Which debt crises did PIGS  used to refer to the economies of Portugal, Ireland, Greece, and Spain, four EU member states
Sentence (from "PIGS (economics)"): During the European debt crisis, the term was also increasingly used to refer to the economies of Portugal, Ireland, Greece, and Spain, four EU member states that were unable to refinance their government debt or to bail out over-indebted banks on their own during the crisis.
Relevant evidence: Yes