2006 Big Ten football revenue data: Ohio State - $59,142,071 Michigan - $50,982,629 Iowa - $45,335,026 Penn State - $44,014,052 Michigan State - $40,795,755 Wisconsin - $34,105,991 Purdue - $25,134,139 Illinois - $20,764,472 Minnesota - $17,390,376 Indiana - $17,033,871 Northwestern - $15,513,675