Chart history global Islamic terrorist attacks

Data from Wiki – numbers for injured often absent.
So Operation Desert Storm did not trigger much. Why the drop in 2009? Then the Arab Spring did not start until December 2010 so what was firing up in 2010? The initial invasions of IS were late 2014 so the wave of IS inspired killings are obvious and look reduced now. But the Wiki data may be very incomplete according to this StoryMap of 2017 killings which records 7,456 fatalities compared to 466+ for the Wiki. Also Victoria Woollaston says “In 2014, Boko Haram was the deadliest terrorist organisation responsible for at least 6,600 deaths.”

So there must be way greater tallies of Islamic terrorist killings out there. If readers have found better data to construct a chart please pass on.