FORTUNE -- Can you spot what's wrong with the spreadsheet at right issued Tuesday by Gartner, Inc?
No, it's not the fact that it shows the worldwide market for mobile phones shrinking by 2.3% year over year. Or the rapid growth in Samsung sales. Or, say, the comparatively slow growth for Apple's (AAPL) iPhone?
No, what's wrong with Gartner's spreadsheet -- MORE
Read more: Gartner and IDC issue dubious mobile phone sales numbers