In the five years since the iPhone launched, Apple created a total of 35,852 retail jobs.
Some of those jobs came from new store openings. The total store count went from 172 to 361, more than doubling. But the growth in employment was faster: from about 6400 to 42,200, more than quintupling. This is reflected in the total number of employees per store which increased from 37 in Q1 2007 to 117 in Q1 2012.
Which brings up an obvious question: Why did Apple triple employment at each store?