Suicide is non-existent among the Tiv of Nigeria, the Andaman Islanders, and the Yahgans of Tierra del Fuego.
Suicide is present but very rare among black American females, Irish Catholics, Mexicans, and Muslims in Egypt; Suicides are common in Hungary, Germany, Austria, Czechoslovakia, Japan, and Finland. (Source: Comprehensive Textbook of Suicidology)
I live in Ireland and I we have an fairly high suicide rate here. I live in a small town in rural Ireland and have been here for 3 years. I can remember hearing about at least a dozen suicides just in the last couple years.
Here are some facts about suicide by Irish Catholics:
http://www.ias.ie/stats.htm
I can see there being a lot of Muslims there, but how many black American females, Irish Catholics, and Mexicans are there in Egypt?
The Red China numbers are skewed by all the newborn baby girls deciding to kill themselves rather than burden their family with a daughter.
Can you help me out with my Thetan problem?
FYI, correlation != causation. Beginning-level stats.
Actually on topic, Language Log featured a sci-fi short story not long ago with a similar idea-- that we could accidentally decimate an alien race by introducing the concept of suicide:
http://itre.cis.upenn.edu/~myl/languagelog/archives/005416.html
Sorry that has no permalink... look at Wednesday the 27th.