The National Transportation and Safety Board keeps records of accidents that occured within the US. Their website has a list of almost all accidents in the US and some outside of the US and they provide a summary of the causes of the accidents.
There are a variety of types of aircraft. General Aviation is the small airplanes that are privately owned. There were approximately 600 accidents (not all fatal) for calendar year 2007. Then there are the commercial airliners that operate under two types of categories named Part 121 and Part 135. For 2007 there were about 14 accidents involving Part 121 Air Carriers---again not necessarily fatal accidents.