Almost 18,000 people were killed in terrorist attacks in 2013, a 61 percent increase from the year 2012. Four terrorist groups, the Islamic State, Al-Qaeda, the Taliban and Boko Haram were responsible for two thirds of all such deaths around the globe.
The Global Terrorism Index, produced by the London-based Institute for Economics and Peace, also found that 80 percent of terrorist attack fatalities occurred in only five countries; Afghanistan, Iraq, Nigeria, Pakistan and Syria.
Worryingly, the 63 percent increase from 11,133 terrorist deaths in 2012 to 17,958 in 2013 is the biggest year-on-year escalation since records began in 2000. Since the turn of the millennium, the number of deaths due to terrorist activates has increased fivefold, which also coincided with US military campaigns in Afghanistan and Iraq.