The Swiss franc depreciated vis-à-vis the U.S. dollar today as the greenback tested offers around the CHF 1.0285 level and was supported around the CHF 1.0180 level.  Data released in Switzerland today saw December producer price inflation up 0.1% m/m and decline 2.5% y/y.  The OECD today called on Switzerland to keep interest rates unchanged until the economic recovery takes hold.  U.S. dollar offers are cited around the CHF 1.0420 level.  The euro moved lower vis-à-vis the Swiss franc as the single currency tested bids around the CHF 1.4750 level while the British pound gained ground vis-à-vis the Swiss franc and tested offers around the CHF 1.6750 level.