Englisch seven lean years

Meaning: A biblical image according to which the dreams of the Egyptian Pharaoh are interpreted by dream interpreter Joseph in such a way that seven fruitful years and seven years of famine lie ahead. Example quotation: "After the seven fat years of social democracy now follow the seven lean years." (Means: bad times, lean years)

German translation:

Kennen Sie schon die Übersetzungen für diese Phrasen?