Side note: there aren't separate civilizations anymore -- it's human civilization, and maybe you can separate out 'Middle Eastern' culture, but that's a very broad term and your statement still doesn't hold up.
Average rate of atheism;
turkey 3%
bahrain N/A assumes 0 maximum possible of 9.8% (other)
kuwait N/A assumes 0 maximum possible rate of 5% (non islamic)
oman N/A assumes 0 less than 5% (non islamic)
qatar N/A assumes 0 max possible 22.5% (other)
saudi arabia atheism expressly illegal
UAE N/A assumes 0 max possible 15 (other)
yemen n/A assumes 0 max possible 1 (other)
Gaza strip 0
iraq N/a assumes 0 max possible 3 (other)
israel 15-37 (split @ 26% :/)
Jordan N/A assumes 0 max possible 2 (other)
Lebanon N/A assumes 0 max possible 5 (other)
Syria 0 (other)
West Bank N/A assumes 0 max possible 8 (other)
Iran N/A assumes 0 max possible 2 (other)
Cyprus 2%
Egypt < 1%
18 countries
total 3 + 26 + 2 + 1 = 32 / 18 = 1.7%
Excuse uberfast formatting, methodology, just check the wikipedia entries then check the atheism rates, combination of the wiki entries on a per country basis + the religion in x articles + demographics of atheism. Compare 1.7% with the figures for a wide variety of western nations referenced at http://en.wikipedia.org/wiki/Demographics_of_atheism#Distrib....
I'm kind of baffled by the idea that this is controversial.
I'm a big boy, I can take it. :)