U.S. Producer Prices Climb 0.5% In January, Much More Than Expected

*Yen Extends Fall To 4-week Of 83.81 Against Canadian Dollar

*Yen Extends Drop To 70.72 Against NZ Dollar

*Yen Extend Slide To 6-day Lows Of 119.39 Vs Euro, 112.42 Vs Franc

*Yen Extends Decline To 5-day Low Of 73.98 Versus Australian Dollar