*U.S. Dollar Drop To 0.9311 Against Franc, 122.36 Against Yen

BoJ's Amamiya Says Risk Aversion, Limited Pent-up Demand Keeps Inflation Low

*U.S. Dollar Weakens To 1.3160 Against Pound

Dollar Falls Ahead Of U.S. Consumer Confidence Index

*U.S. Dollar Declines To Near 2-week Low Of 1.1137 Against Euro