There is official count of number of civilians murdered by Soviets in 1932-1934 by hunger (Holodomor) - 7 millions as declared by Russian Duma on 02.04.2008.

However, these are adults only, because children deaths are not counted at that time. With school-age children, for which records are stored, number raises to 10.5 million. Number of under school age children died because of artificial hunger in 1932-1934 is still unknown.

I hope, this will help to calculate number of deaths in Iraq.