I would try and compare these statistics to the suicide statistics of the general public. I would than compare the suicide statistics of the Israeli public to the public rates in other nations. It maybe that these soldiers are just killing themselves because they have always been depressed and not as a result of theirs military service. People may assume that the suicides are a result of PTSD and not innate clinical disabilities.
Israeli soldier lightly wounded after being hit by car south of Hebron (Haaretz)
from the article: IDF: Suicide is the primary cause of death among Israeli soldiers