Business FocusThe big, fat, Greek tanker sale: Hellenic shipowners see receipts from disposals race past $9bnOwners have made a killing selling older ships over the past two yearsNikolas Tsakos’ Tsakos Energy Navigation has raised about $340m from the sale of 13 tankers in the past two years.Photo: TradeWinds EventsHarry PapachristouTradeWinds correspondentAthens