The Associated PressTHE NUMBERS: Germany's unemployment rate rose to 6.7 percent in December from 6.5 percent in November. About 2.8 million people were out of work in Europe's biggest economy. THE CAUSE: The government said seasonal factors such as Christmas and slower growth in 2012 were to blame. RELATIVELY HEALTHY: Germany's unemployment rate pales in comparison to that of its more heavily indebted European neighbors. About a quarter of the population of Spain and Greece are jobless.