IRA? You mean the 1960/70/80s for the most part? Why don't you go back 200 years to pad your skinny numbers even more? Your necessarily short list is up against this:  http://www.thereligionofpeace.com/ where there are probably more jihadi incidents recorded last week than you can name for any other group of religiously motivated whack jobs over the last century.

Your failure to consider the massive disproportion is either deliberate or just dumb.