According to open-source information, approximately 14,000 terrorist attacks occurred in various countries during 2006, resulting in over 20,000 deaths. As compared with 2005, attacks in 2006 rose by 3,000, a 25 percent increase, while deaths rose by 5,800, a 40 percent increase. As was the case last year, by far the largest number of reported terrorist incidents and deaths occurred in the Near East and South Asia. These two regions also were the locations for 90 percent of the nearly 300 high-casualty attacks in 2006 that killed 10 or more people—only a total of five high-casualty attacks occurred in Europe-Eurasia, East Asia-Pacific, and the Western Hemisphere.
National Counterterrorism Center: Report on Terrorist Incidents – 2006