death rate of diplomats

I heard a retired diplomat give a speech in which he mentioned that the ratio of US diplomats who have died while on the job than not is higher than the ratio of US soldiers who have died while on the job than not. Seems plausible, but not sure what time frame he meant. Maybe post WWII. (His point was that diplomats serve the nation with courage and distinction, contrary to how the right in the USA portrays them.)

Any ideas on how to figure this out? For starters: how many diplomats have died in the last half of the 20th century let’s say.

Anybody? : ) :confused: