JMeter aggregate report malfunctioning

Did anybody encounter an incorrect report? I set up a web test plan following the tutorial http://ift.tt/19l9Ijm, except that I added a CSV Data Set Config to read request parameters from a file. The test process finished without warning, but the data in the aggerate report is weird.

It gives something like this:

However according to the document http://ift.tt/29jaruo,

Throughput = (number of requests) / (total time in secs)
           = 1000 * (number of requests) / (total time in millionsec)
Average = (total time in millionsec) / (number of requests)

which means Average * Throughput should almost be 1000.

What's wrong with my report?

ps: the formula above come from http://ift.tt/29KbDW8