Mortgage rates inched lower Friday following the release of key employment data for November. The economy added 178,000 jobs last month, a bit more than expected. Separately, the Unemployment Rate slid to 4.6%, well below forecast, to the lowest level since August 2007. The decline, however, was mainly due to workers leaving the labor force. The main focus of investors was a 0.1% decrease in average hourly earnings. An increase of 0.2% had been expected. Wages rose 2.5% over the past 12 months, well below expectations. No other key data will be released today.