{"cols":[{"label":"Year","type":"string"},{"label":"Preferred stock, no par value, 6% Cumulative Mandatory Convertible, Series D, $1,000 per share liquidation preference","type":"number"}],"rows":[{"c":[{"v":"2011","f":null},{"v":0,"f":"0"}]},{"c":[{"v":"2012","f":null},{"v":0,"f":"0"}]},{"c":[{"v":"2013","f":null},{"v":0,"f":"0"}]},{"c":[{"v":"2014","f":null},{"v":0,"f":"0"}]},{"c":[{"v":"2015","f":null},{"v":0,"f":"0"}]}]}