The number of terror attacks world-wide shot up by 35% between 2013 and 2014, with an 81% jump in the number of deaths, according to the State Department’s annual global terrorism report.

The report said nearly 33,000 people were killed in almost 13,500 terrorist attacks around the world in 2014, up from just over 18,000 deaths in nearly 10,000 attacks in 2013.

There were 20 attacks that killed more than 100 people each in 2014, compared with two in 2013, according to the report.

The report attributes the rise in attacks to increased terror activity in Iraq, Afghanistan and Nigeria and the sharp spike in deaths to a growth in exceptionally lethal attacks in those countries and elsewhere. There were 20 attacks that killed more than 100 people each in 2014, compared to just two in 2013, according to the figures that were compiled for the State Department by the National Consortium for the Study of Terrorism and Responses to Terrorism at the University of Maryland.