Widmer, Mireille, and Irene Pavesi. Firearms and Violent Deaths. No. 60. Research Note, 2016.
"The proportion of firearm deaths varies across conflict-affected countries, as well as over time in a single conflict. Such fluctuations reflect changes in the intensity or type of warfare. In Syria, for example, fire-arms accounted for about 80 per cent of fatalities in the early months of the war, between March 2011 and January 2012, when overall fatalities remained well below 2,000 people per month (see Figure 3, Source: Humanitarian Tracker). As the war intensified, in mid-2012, artillery use increased and the proportion of deaths by gunshot dropped below 50 per cent. In the second half of 2012, and particularly from 2015, air bombardments also increased. From January 2015, the annual share of fatal gunshots dropped below 30 per cent of total fatalities, with air bombardments often claiming more lives than either small arms or artillery. Firearms can account for a significant proportion of violent deaths regardless of a country’s overall violent death rate."