The 2% is actually the number killed classed as “militant leaders”. (page 31) Worst case scenario from data sources for this report seems to be 34% (881 civilians of 2,562 total deaths—Page 45). Best scenario was 5.3%. (2,716 “militants”, 152 civilians, 130-268 “unknowns”) Also page 45. The rest of “Chapter 2: Numbers” concerns commentary on the numbers that is worth reading. As you can see, these numbers vary wildly.♦If there were an award for disingenuous editorial cartoons, this one would have to be one of the top nominees for that award.