Question: International Consolidated Airlines Group, S.A., often shortened to IAG, is an Anglo-Spanish multinational airline holding company,  it was formed in January of which year, after a merger agreement between British Airways and Iberia, the flag carrier airlines of the United Kingdom and Spain respectively?
Sentence (from "Aer Lingus"): Founded by the Irish government, it was privatised between 2006 and 2015 and it is now a wholly owned subsidiary of International Airlines Group (IAG), the parent company of British Airways and Iberia.
Relevant evidence: No