Turns out being a bank robber is not as lucrative as it may sound.

“In what’s billed as the first cost-benefit analysis of such crimes, the authors note that Britain saw 106 attempted or successful robberies of 10,500 branch banks in 2007. The average haul was $31,600, including the one-third of attempts that came up empty. The average “successful” heist landed about $46,600 — but about 20% of those successes were later tarnished, to say the least, when the raiders were arrested. Each incident involved an average of 1.6 people, resulting in a per-person take of $19,750: a mere half-years’ worth of wages for the average Britisher. (In the U.S., the authors say, the average total bank-robbery take, per incident, is even smaller, just over $4,000.) Think a half-year’s salary isn’t bad for one day’s work, plus a little planning? A “career” bank robber would more likely than not be arrested after only four attempts” [Shea, WSJ Blog]

More on this here.