I concur entirely with Leon. I remember from my brief sojourn on the display circuit that there were many restrictions for distance from the crowd depending on speed and closing vector - it seemed incoherent to me at the time that those who had paid to watch an air show were thus protected whilst those that sat in a nearby field (cue Pprune indignation at ticket evasion), those who lived nearby and those simply going about their business were not to the same degree. Not that conurbations and roads weren't pointed out and avoided as much as possible of course.
wrt fatalities Is 9 low or high? Some would go for low, I would argue that 1 is too high.