In my list ‘religious’ should be ‘separatist’.
“Picture is worth 1000 words”
The map showing which areas had the most attacks is on page 17.
Trying again..... list is: right, left, separatist, religious, single- issue.
Note also that the highest incidences of attacks occurred in the 1970s, while the attacks with the most fatalities were later (probably skewed by 9/11).