There seems to be no current data on this information and there is questions concerning the validation of past data. Apparently there is high rate of mental illness and suicide
Jehovahs Witnesses suicide rate 5 to 10 times above average
Jehovah Witness Suicide By Christian Peper
Authors note: If you or someone you love is contemplating suicide please call the National Suicide Prevention Lifeline (USA) at: 1-800-273-TALK (8255). Teenagers can call the Covenant House NineLine at: 1-800-999-9999. Cries for help should never be discounted or ignored.
There is a long history of suicides within the Jehovah Witness Watchtower organization. Some experts have estimated the rate of suicides associated with the society to be five to ten times the rate of the general population. The exact number of suicides is impossible to obtain for a variety of reasons. Secular intuitions such as hospitals and police departments do not keep track of the religious organizations of the deceased. If institutions began to keep such records they would be accused of religious persecution. The American Psychiatric Association has moved towards a biological model of mental health. This causes non-biological causes of suicide to be discounted or ignored. The totalitarian Jehovah Witness Watchtower society knows of many suicides but will not admit guilt."